Yuk, pelajari materi resonansi bunyi secara lengkap, mulai dari pengertian, rumus, dan contoh soalnya! Baca artikel Fisika kelas 11 ini sampai habis, ya!
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Teman-teman, kamu tahu apa itu garpu tala? Pada suatu percobaan, ada dua buah garpu tala yang diletakkan berselebalahan. Saat salah satu garpu tala digetarkan dengan pemukul, garpu tala di sebelahnya juga bisa ikut bergetar.
Hmm, kenapa bisa begitu, ya? Nah, hal itu bisa terjadi akibat adanya resonansi bunyi. Apa itu resonansi bunyi? Yuk, kita cari tahu!
Pengertian Resonansi Bunyi
Resonansi bunyi merupakan peristiwa ikut bergetarnya suatu benda akibat getaran yang dihasilkan oleh sumber bunyi.
Resonansi bunyi hanya dapat terjadi jika suatu benda memiliki frekuensi alami yang sama dengan frekuensi alami sumber bunyi yang bergetar.
Selain benda, udara atau gas di sekitar sumber bunyi juga dapat beresonansi, asalkan memiliki frekuensi alami yang sama dengan frekuensi alami sumber bunyi.
Contohnya seperti percobaan garpu tala tadi. Ketika salah satu garpu tala dipukul, akan dihasilkan bunyi dan getaran yang membuat garpu tala di sebelahnya ikut bergetar.
Baca Juga: Jenis-Jenis Bunyi Berdasarkan Frekuensinya
Resonansi bunyi dapat memperkuat bunyi asli, sehingga bunyi yang dihasilkan dapat terdengar lebih keras dan nyaring. Tapi, resonansi juga bisa menimbulkan kerugian, lho!
Contohnya, bunyi ledakan bom yang sangat keras dapat menimbulkan getaran yang bisa meruntuhkan gedung di sekitarnya.
Sifat Resonansi Bunyi
Adapun sifat-sifat resonansi bunyi, di antaranya:
1. Menggetarkan benda dengan frekuensi yang sama
Resonansi terjadi ketika suatu benda menerima gelombang suara dengan frekuensi yang sama dengan frekuensi alami benda tersebut. Sehingga, hal ini menyebabkan benda tersebut ikut bergetar, meskipun tanpa adanya kontak langsung.
2. Menguatkan intensitas suara
Resonansi dapat memperkuat gelombang bunyi, membuatnya terdengar lebih nyaring. Hal ini terjadi karena energi getaran yang diterima bertambah, meningkatkan amplitudo suara.
3. Dapat merambat melalui berbagai medium
Gelombang bunyi yang mengalami resonansi dapat merambat melalui berbagai media, termasuk zat padat maupun udara, memungkinkan suara terdengar lebih jelas dalam kondisi tertentu.
Rumus Cepat Rambat Bunyi
Untuk kasus resonansi bunyi di tabung yang berisi air, cepat rambat gelombang bunyinya dapat dihitung menggunakan rumus:
Untuk memahami rumus tersebut, coba kamu perhatikan video percobaan resonansi bunyi berikut ini.
Percobaan Resonansi Bunyi (Sumber: Digital Sound and Music via YouTube)
Pada percobaan tersebut, digunakan tabung, air, dan garpu tala dengan frekuensi alami tertentu. Tujuan dari percobaan itu adalah untuk mengetahui terjadinya resonansi bunyi. Mula-mula, tabung diisi dengan air sampai penuh. Lalu, garpu tala digetarkan di dekat mulut tabung.
Percobaan tersebut dilakukan berulang kali dengan ketinggian kolom udara yang berbeda. Kolom udara ini diukur berdasarkan jarak antara mulut tabung dengan titik permukaan air pada tabung.
Jadi, saat garpu tala dipukul, dan tabung yang berisi airnya menghasilkan bunyi dengung yang lebih keras pada ketinggian kolom udara tertentu, disitulah terjadi resonansi.
Ternyata, resonansi terjadi ketika panjang kolom udaranya sebesar dan seterusnya, dengan selisih dari resonansi satu ke resonansi berikutnya. Nah, panjang kolom udara saat terjadi resonansi ini bisa kita sebut sebagai .
Kalau kita lihat dari data-data ini, panjang kolom udara saat terjadi resonansi selalu berupa kelipatan bilangan ganjil dari ya!
Maka dari itu, hubungan panjang kolom udara saat terjadi resonansi ke-n dengan panjang gelombang bisa kita cari dengan rumus:
Dengan n menunjukkan resonansi ke berapanya, misal resonansi pertama berarti n = 1, resonansi kedua berarti n = 2, resonansi ketiga berarti n = 3, dan seterusnya.
Nah, untuk mencari cepat rambat gelombang bunyinya, kita membutuhkan nilai frekuensi alami (f) yang dimiliki sumber bunyi.
Namun, kamu tidak perlu khawatir, biasanya nilai f ini akan diketahui sejak awal atau tertera pada soal, sehingga kamu tidak perlu bingung mencari nilai f nya.
Setelah mengetahui nilai dan , kita bisa mencari nilai menggunakan rumus tadi.
Contoh Soal Resonansi Bunyi
Resonansi pertama garpu tala terjadi pada ruang udara dalam tabung setinggi 20 cm. Jika cepat rambat bunyi di udara 340 m/s, berapakah frekuensi garpu tala?
Pembahasan:
Diketahui: v = 340 m/s
Ditanya: f garpu tala …?
Jawab:
1/4 λ = 20 cm
λ = 20 cm × 4
λ = 80 cm = 0,8 m
v = λ × f
f = v / λ
f = 340 / 0,8 = 425 Hz
Jadi, frekuensi garpu tala tersebut adalah 425 Hz.
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Mudah, kan? Kalau kamu masih bingung mengenai materi resonansi bunyi atau kesulitan mengerjakan contoh soalnya, tanya saja ke roboguru! Kirim foto soalmu melalui WhatsApp dan dapatkan solusi jawabannya sekarang. Psstt.. layanan roboguru gratis, lho. Yuk, cobain!
Referensi:
Suparmo dan Widodo, T. (2009). Panduan Pembelajaran Fisika : untuk SMA & MA Kelas XII. Jakarta: Pusat Perbukuan, Departemen Pendidikan Nasional.
‘Resonansi’, Fisikazone, [Daring]. Tautan: https://fisikazone.com/resonansi/ (Diakses: 15 Februari 2021)
‘Cepat Rambat Bunyi’, Fisikazone, [Daring]. Tautan: http://fisikazone.com/cepat-rambat-bunyi/ (Diakses: 23 Februari 2021)
Sumber Gambar:
GIF ‘Percobaan Garpu Tala’ [Daring]. Tautan: https://gfycat.com/detailedblaringaardwolf-tazzzer (Diakses: 23 Februari 2021)
Video ‘Percobaan Resonansi Bunyi’ [Daring]. Tautan: https://www.youtube.com/watch?v=_cpC4dtvVjI&t=1s (Diakses: 23 Februari 2021)
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<h1 class="content-title">
Resonansi Bunyi: Pengertian, Rumus, dan Contoh Soal | Fisika Kelas 11 </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/kenya-swawikanti" class="">Kenya Swawikanti</a> </p>
<p class="content-info"><span>February 18, 2025 • </span> <span>4 minutes read</span></p>
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<p style="text-align: center;"><img decoding="async" style="width: 820px; margin-left: auto; margin-right: auto; display: block;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Resonansi%20Bunyi.jpg" alt="Resonansi Bunyi" width="820" /></p>
<blockquote>
<p style="text-align: center;"><span style="font-size: 16px;"><em>Yuk, pelajari materi resonansi bunyi secara lengkap, mulai dari pengertian, rumus, dan contoh soalnya! Baca <strong><a href="https://www.ruangguru.com/blog/c/fisika/fisika-sma-kelas-11">artikel Fisika kelas 11</a></strong> ini sampai habis, ya!</em></span></p>
<p style="text-align: center;"><span style="font-size: 16px;">—</span></p>
</blockquote>
<p> </p>
<p style="text-align: justify; font-weight: normal;"><span style="background-color: transparent; font-size: 1rem;">Teman-teman, kamu tahu apa itu garpu tala? Pada suatu percobaan, ada dua buah garpu tala yang diletakkan berselebalahan. Saat salah satu garpu tala digetarkan dengan pemukul, garpu tala di sebelahnya juga bisa ikut bergetar. </span></p>
<p style="text-align: justify; font-weight: normal;"><span style="background-color: transparent; font-size: 1rem;">Hmm, kenapa bisa begitu, ya? </span>Nah, hal itu bisa terjadi akibat adanya <strong>resonansi bunyi</strong>. Apa itu resonansi bunyi? Yuk, kita cari tahu!</p>
<p> </p>
<h2><span style="font-size: 18pt;">Pengertian Resonansi Bunyi</span></h2>
<p style="text-align: justify;">Resonansi bunyi merupakan peristiwa <strong>ikut bergetarnya</strong> <strong>suatu benda akibat getaran yang dihasilkan oleh sumber bunyi</strong>.</p>
<p style="text-align: justify;">Resonansi bunyi hanya dapat terjadi jika suatu benda memiliki <strong>frekuensi alami</strong> yang <strong>sama dengan frekuensi alami sumber bunyi</strong> yang bergetar.</p>
<p style="text-align: justify;">Selain benda, <strong>udara</strong> atau <strong>gas </strong>di sekitar sumber bunyi <strong>juga dapat</strong> <strong>beresonansi</strong>, <strong>asalkan memiliki frekuensi alami yang sama dengan frekuensi alami sumber bunyi</strong>.</p>
<p style="text-align: justify;">Contohnya seperti percobaan garpu tala tadi. Ketika salah satu garpu tala dipukul, akan dihasilkan bunyi dan getaran yang membuat garpu tala di sebelahnya ikut bergetar.</p>
<p style="text-align: justify;"><strong>Baca Juga: </strong><a href="https://www.ruangguru.com/blog/ipa-kelas-8-jenis-jenis-bunyi-berdasarkan-frekuensinya"><strong>Jenis-Jenis Bunyi Berdasarkan Frekuensinya</strong></a></p>
<p style="text-align: justify;">Resonansi bunyi dapat <strong>memperkuat bunyi asli</strong>, sehingga bunyi yang dihasilkan dapat terdengar lebih keras dan nyaring. Tapi, resonansi juga bisa <strong>menimbulkan kerugian</strong>, <em>lho</em>!</p>
<p style="text-align: justify;">Contohnya, <strong>bunyi ledakan bom</strong> yang sangat keras dapat menimbulkan getaran yang bisa meruntuhkan gedung di sekitarnya.</p>
<p> </p>
<h2><span style="font-size: 18pt;">Sifat Resonansi Bunyi</span></h2>
<p style="text-align: justify;">Adapun sifat-sifat resonansi bunyi, di antaranya:</p>
<p> </p>
<h3 style="text-align: justify;"><span style="font-size: 14pt;">1. Menggetarkan benda dengan frekuensi yang sama</span></h3>
<p style="text-align: justify;">Resonansi terjadi ketika suatu benda menerima gelombang suara dengan frekuensi yang sama dengan frekuensi alami benda tersebut. Sehingga, hal ini menyebabkan benda tersebut ikut bergetar, meskipun tanpa adanya kontak langsung.</p>
<p> </p>
<h3 style="text-align: justify;"><span style="font-size: 14pt;">2. Menguatkan intensitas suara</span></h3>
<p style="text-align: justify;">Resonansi dapat memperkuat gelombang bunyi, membuatnya terdengar lebih nyaring. Hal ini terjadi karena energi getaran yang diterima bertambah, meningkatkan amplitudo suara.</p>
<p> </p>
<h3 style="text-align: justify;"><span style="font-size: 14pt;">3. Dapat merambat melalui berbagai medium</span></h3>
<p style="text-align: justify;">Gelombang bunyi yang mengalami resonansi dapat merambat melalui berbagai media, termasuk zat padat maupun udara, memungkinkan suara terdengar lebih jelas dalam kondisi tertentu.</p>
<p> </p>
<h2><span style="font-size: 18pt;">Rumus Cepat Rambat Bunyi</span></h2>
<p style="text-align: justify;">Untuk kasus <strong>resonansi bunyi di tabung yang berisi air</strong>,<strong> cepat rambat gelombang bunyinya </strong>dapat dihitung menggunakan rumus:</p>
<p style="text-align: justify;"><img decoding="async" style="width: 600px; margin-left: auto; margin-right: auto; display: block;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Rumus%20Cepat%20Rambat%20Bunyi.jpg" alt="Rumus Cepat Rambat Bunyi" width="600" /></p>
<p> </p>
<p style="text-align: justify;">Untuk memahami rumus tersebut, coba kamu perhatikan video percobaan resonansi bunyi berikut ini.</p>
<div class="hs-embed-wrapper" style="position: relative; overflow: hidden; width: 100%; height: auto; padding: 0px; max-width: 600px; max-height: 337.5px; min-width: 256px; display: block; margin: auto;" data-service="youtube" data-responsive="true">
<div class="hs-embed-content-wrapper">
<div style="position: relative; overflow: hidden; max-width: 100%; padding-bottom: 56.25%; margin: 0px;"><iframe style="position: absolute; top: 0px; left: 0px; width: 100%; height: 100%; border: none;" src="https://www.youtube.com/embed/_cpC4dtvVjI?start=7" width="560" height="315" frameborder="0" allowfullscreen="allowfullscreen"></iframe></div>
</div>
</div>
<p> </p>
<p style="text-align: center;">Percobaan Resonansi Bunyi (Sumber: Digital Sound and Music via YouTube)</p>
<p> </p>
<p style="text-align: justify;">Pada percobaan tersebut, digunakan <strong>tabung</strong>, <strong>air</strong>, dan <strong>garpu tala</strong> dengan <strong>frekuensi alami </strong>tertentu. Tujuan dari percobaan itu adalah untuk mengetahui terjadinya resonansi bunyi. Mula-mula, tabung diisi dengan air sampai penuh. Lalu, garpu tala digetarkan di dekat mulut tabung.</p>
<p style="text-align: justify;">Percobaan tersebut dilakukan berulang kali dengan ketinggian kolom udara yang berbeda. Kolom udara ini diukur berdasarkan jarak antara mulut tabung dengan titik permukaan air pada tabung.</p>
<p style="text-align: justify;">Jadi, saat garpu tala dipukul, dan tabung yang berisi airnya menghasilkan <strong>bunyi dengung yang lebih keras</strong> <strong>pada ketinggian kolom udara tertentu</strong>, <strong>disitulah terjadi resonansi</strong>.</p>
<p style="text-align: justify;">Ternyata, resonansi terjadi ketika panjang kolom udaranya sebesar <img decoding="async" style="width: 121px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/1-Feb-25-2021-06-34-24-01-AM.png" alt="1-Feb-25-2021-06-34-24-01-AM" width="121" />dan seterusnya, dengan selisih <img decoding="async" style="width: 40px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/2-Feb-25-2021-06-35-45-17-AM.png" alt="2-Feb-25-2021-06-35-45-17-AM" width="40" />dari resonansi satu ke resonansi berikutnya. Nah, panjang kolom udara saat terjadi resonansi ini bisa kita sebut sebagai <img decoding="async" style="width: 20px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/3-Feb-25-2021-06-37-35-86-AM.png" alt="3-Feb-25-2021-06-37-35-86-AM" width="20" />.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 600px; margin-left: auto; margin-right: auto; display: block;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Ilustrasi%20Resonansi%20Bunyi.jpg" alt="Ilustrasi Resonansi Bunyi" width="600" /></p>
<p> </p>
<p style="text-align: justify;">Kalau kita lihat dari data-data ini, panjang kolom udara saat terjadi resonansi selalu berupa kelipatan bilangan ganjil dari <img decoding="async" style="width: 34px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/4-Feb-25-2021-06-38-51-01-AM.png" alt="4-Feb-25-2021-06-38-51-01-AM" width="34" /> ya!</p>
<p style="text-align: justify;">Maka dari itu, hubungan panjang kolom udara saat terjadi resonansi ke-n <img decoding="async" style="width: 49px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/5-Feb-25-2021-06-41-46-69-AM.png" alt="5-Feb-25-2021-06-41-46-69-AM" width="49" />dengan panjang gelombang <img decoding="async" style="width: 45px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/6-Feb-25-2021-06-41-53-92-AM.png" alt="6-Feb-25-2021-06-41-53-92-AM" width="45" /> bisa kita cari dengan rumus: <img decoding="async" style="width: 131px; margin-left: auto; margin-right: auto; display: block;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/7-Feb-25-2021-06-42-01-39-AM.png" alt="7-Feb-25-2021-06-42-01-39-AM" width="131" /></p>
<p style="text-align: justify;">Dengan n menunjukkan resonansi ke berapanya, misal resonansi pertama berarti n = 1, resonansi kedua berarti n = 2, resonansi ketiga berarti n = 3, dan seterusnya.</p>
<p style="text-align: justify;">Nah, untuk mencari cepat rambat gelombang bunyinya, kita membutuhkan <strong>nilai frekuensi alami (f) </strong><strong>yang dimiliki sumber bunyi</strong>.</p>
<p style="text-align: justify;">Namun, kamu tidak perlu khawatir, biasanya nilai f ini akan <strong>diketahui sejak awal</strong> atau <strong>tertera pada soal</strong>, sehingga kamu tidak perlu bingung mencari nilai f nya.</p>
<p style="text-align: justify;">Setelah mengetahui nilai <img decoding="async" style="width: 29px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/11-Feb-25-2021-06-48-56-50-AM.png" alt="11-Feb-25-2021-06-48-56-50-AM" width="29" /> dan <img decoding="async" style="width: 25px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/10-Feb-25-2021-06-46-25-83-AM.png" alt="10-Feb-25-2021-06-46-25-83-AM" width="25" />, kita bisa mencari nilai <img decoding="async" style="width: 29px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/12-Feb-25-2021-06-49-20-89-AM.png" alt="12-Feb-25-2021-06-49-20-89-AM" width="29" /> menggunakan rumus <img decoding="async" style="width: 78px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/13-Feb-25-2021-06-49-39-99-AM.png" alt="13-Feb-25-2021-06-49-39-99-AM" width="78" /><span style="background-color: transparent; font-size: 1rem;">tadi.</span></p>
<p> </p>
<h2><span style="font-size: 18pt;">Contoh Soal Resonansi Bunyi</span></h2>
<p style="text-align: justify;">Resonansi pertama garpu tala terjadi pada ruang udara dalam tabung setinggi 20 cm. Jika cepat rambat bunyi di udara 340 m/s, berapakah frekuensi garpu tala?</p>
<p style="text-align: justify;"><strong>Pembahasan:</strong></p>
<p style="text-align: justify;">Diketahui: v = 340 m/s<br />
Ditanya: f garpu tala …?</p>
<p style="text-align: justify;">Jawab:</p>
<p style="text-align: justify;">1/4 λ = 20 cm<br />
λ = 20 cm × 4<br />
λ = 80 cm = 0,8 m</p>
<p style="text-align: justify;">v = λ × f<br />
f = v / λ<br />
f = 340 / 0,8 = 425 Hz</p>
<p style="text-align: justify;">Jadi, frekuensi garpu tala tersebut adalah 425 Hz.</p>
<p style="text-align: center;">—</p>
<p style="text-align: justify;">Mudah, kan? Kalau kamu masih bingung mengenai materi resonansi bunyi atau kesulitan mengerjakan contoh soalnya, tanya saja ke <a href="https://roboguru.ruangguru.com/"><strong>roboguru</strong></a>! Kirim foto soalmu melalui WhatsApp dan dapatkan solusi jawabannya sekarang. <em>Psstt</em>.. layanan roboguru gratis, <em>lho</em>. Yuk, cobain!</p>
<p><a class="rg-cta" style="text-align: center;" href="https://roboguru.ruangguru.com/" target="_blank" rel="noopener"><img fetchpriority="high" decoding="async" class="aligncenter" src="https://cdn-web.ruangguru.com/landing-pages/assets/cta/8b4612fa-3a65-4f41-b9c6-497f89f457ad.jpeg" alt="IDN CTA Blog Roboguru Ruangguru 2022" width="820" height="200" /></a></p>
<p style="text-align: left;"><strong style="background-color: transparent; font-size: 1rem;">Referensi:</strong></p>
<p style="text-align: left;">Suparmo dan Widodo, T. (2009). <em>Panduan Pembelajaran Fisika : untuk SMA & MA Kelas XII</em>. Jakarta: Pusat Perbukuan, Departemen Pendidikan Nasional.</p>
<p style="text-align: left;">‘Resonansi’, <em>Fisikazone</em>, [Daring]. Tautan: https://fisikazone.com/resonansi/ (Diakses: 15 Februari 2021)</p>
<p style="text-align: left;">‘Cepat Rambat Bunyi’, <em>Fisikazone</em>, [Daring]. Tautan: http://fisikazone.com/cepat-rambat-bunyi/ (Diakses: 23 Februari 2021)</p>
<p style="text-align: left;"><strong>Sumber Gambar:</strong></p>
<p style="text-align: left;">GIF ‘Percobaan Garpu Tala’ [Daring]. Tautan: https://gfycat.com/detailedblaringaardwolf-tazzzer (Diakses: 23 Februari 2021)<strong> </strong></p>
<p style="text-align: left;">Video ‘Percobaan Resonansi Bunyi’ [Daring]. Tautan: https://www.youtube.com/watch?v=_cpC4dtvVjI&t=1s (Diakses: 23 Februari 2021)</p>
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<div class="d-lg-none text-center">
<nav class="footer-menu social">
<p class="title">Ikuti Kami</p>
<a target="_blank" href="https://www.instagram.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/instagram.png" loading="lazy" alt="Logo Instagram Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.facebook.com/ruanggurucom/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/facebook.png" loading="lazy" alt="Logo Facebook Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://twitter.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/twitter.png" loading=" lazy" alt="Logo Twitter Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.youtube.com/ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/youtube.png" loading=" lazy" alt="Logo Youtube Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.linkedin.com/company/ruangguru-com">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/linkedin.png" loading=" lazy" alt="Logo LinkedIn Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.tiktok.com/@ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/tiktok.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/tiktok.png" loading=" lazy" alt="Logo TikTok Footer" width="32px" height="32px" />
</picture>
</a>
</nav>
</div>
<p class="footer-copyright">
© 2026 All Rights Reserved PT. Ruang Raya Indonesia
</p>
</div>
<style>
.bantuan-container {
position: relative;
}
.bantuan-element {
position: fixed;
z-index: 999;
display: flex;
align-items: flex-end;
justify-content: flex-end;
cursor: pointer;
transition: all 0.6s ease;
}
.bantuan-top {
bottom: 11rem;
right: 2rem;
}
.bantuan-bottom {
bottom: 2rem;
right: 2rem;
}
.bantuan-top-2 {
bottom: 15rem;
right: 2rem;
}
.bantuan-top-3 {
bottom: 19rem;
right: 2rem;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 2rem;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 2rem;
}
@media (min-width: 768px) {
.bantuan-element img {
width: auto;
transition: all 0.4s ease;
}
.bantuan-top img {
width: 140px;
}
.bantuan-bottom img {
width: 140px;
}
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 140px;
}
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 140px;
}
.bantuan-element.clicked {
bottom: 9rem;
right: 2.5rem;
}
.bantuan-element.clicked img {
width: auto;
height: 64px;
}
}
@media (max-width: 767px) {
.bantuan-top {
bottom: 8rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom {
bottom: 2rem;
right: 1.25rem;
align-items: center;
}
.bantuan-top-2 {
bottom: 12rem;
right: 1rem;
align-items: center;
}
.bantuan-top-3 {
bottom: 16rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 1.25rem;
align-items: center;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 1.25rem;
align-items: center;
}
.bantuan-element img {
width: auto;
}
.bantuan-top img,
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 96px;
}
.bantuan-bottom img,
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 96px;
}
}
.bantuan-element:hover {
transform: scale(1.05);
}
.bantuan-element img {
max-width: 100%;
height: auto;
}
</style>
<div id="bantuan-divs-container" style="position: relative" data-product="ruangguru" data-table="rg_floating_icon"></div>
<script>
class FloatingDivsComponent {
constructor(product = 'ruangguru', table = 'rg_floating_icon') {
this.container = document.getElementById('bantuan-divs-container');
this.floatingElements = [];
this.product = product;
this.table = table;
// Configuration
this.config = {
baseApiUrl: 'https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/rg_banner/views/',
apiKey: 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
maxElements: 2,
zIndexBase: 100,
};
// Build dynamic API URL based on table parameter
this.config.apiUrl = this.buildApiUrl();
this.init();
}
buildApiUrl() {
const baseUrl = this.config.baseApiUrl;
const tableName = this.table || 'rg_floating_icon';
const queryParams =
'offset=0&limit=99999&sort=rankPosition&where=(type,eq,floating)~and(showIn,anyof,blog)~and(hide,is,false)~and(product,eq,' +
this.product +
')&nested%5Bcta%5D%5Bfields%5D=Id,name,ctaId,imageUrl,ctaLink,targetUrl';
return `${baseUrl}${tableName}?${queryParams}`;
}
async init() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to initialize floating divs component:', error);
}
}
async fetchFloatingElements() {
try {
const options = {
method: 'GET',
headers: {
'xc-token': this.config.apiKey || 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
},
};
const urlNoco = this.config.apiUrl;
const response = await fetch(urlNoco, options);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
this.floatingElements = this.processApiResponse(data);
} catch (error) {
console.error('Error fetching floating elements:', error);
throw error;
}
}
processApiResponse(data) {
if (!data || !data.list || !Array.isArray(data.list)) {
return [];
}
console.log(data.list);
// Ensure we only get maximum 2 elements
const limitedElements = data.list.slice(0, this.config.maxElements);
return limitedElements;
}
renderFloatingElements() {
if (!this.container || this.floatingElements.length === 0) {
return;
}
// Additional safeguard: ensure we never render more than maxElements
const elementsToRender = this.floatingElements.slice(0, this.config.maxElements);
// Clean up existing elements and their event listeners
this.cleanupExistingElements();
// Clear existing content
this.container.innerHTML = '';
elementsToRender.forEach((element, index) => {
const floatingDiv = this.createFloatingDiv(element, index);
this.container.appendChild(floatingDiv);
});
}
cleanupExistingElements() {
// Clear existing elements (no need for event listener cleanup with CSS approach)
const existingElements = this.container.querySelectorAll('[data-floating-element]');
existingElements.forEach(element => {
element.remove();
});
}
createFloatingDiv(element, index) {
const div = document.createElement('div');
const cta = element.cta[0]; // Use the first CTA
// Add data attribute for cleanup tracking
div.setAttribute('data-floating-element', 'true');
// Apply CSS classes based on rankPosition
const positionClass = this.getPositionClass(element.rankPosition, index);
div.className = `bantuan-element ${positionClass}`;
div.style.zIndex = this.config.zIndexBase + index;
// Create the link and image
const link = document.createElement('a');
link.href = 'https://cta.ruangguru.com/' + cta.ctaId || '#';
link.target = '_blank';
// Add tracking attributes
link.setAttribute('data-tracking-event-type', 'landing_page__core__item_click');
link.setAttribute(
'data-tracking-context',
JSON.stringify({
product_name: this.product,
cta_action: 'redirection',
cta_action_detail: link.href,
item_type: 'floating',
item_name: element.name || 'Floating element',
item_category: 'payment',
item_position: index,
item_serial: null,
section_type: 'floating_item',
section_position: 'body',
section_name: 'floating_item',
})
);
const img = document.createElement('img');
img.src = element.imageUrl + '?h=200&convert=webp';
img.alt = element.name || 'Floating element';
img.loading = 'lazy';
// Add click tracking
link.addEventListener('click', () => {
this.trackClick(element, cta);
});
link.appendChild(img);
div.appendChild(link);
return div;
}
getPositionClass(rankPosition, index) {
// Define positioning classes based on rankPosition
if (rankPosition === 1) {
return 'bantuan-top'; // Top position
} else if (rankPosition === 2) {
return 'bantuan-bottom'; // Bottom position
} else {
// For additional elements, distribute them evenly
return `bantuan-${index % 2 === 0 ? 'top' : 'bottom'}-${Math.floor(index / 2) + 1}`;
}
}
trackClick(element, cta) {
// Implement click tracking logic here
console.log('Floating element clicked:', {
elementId: element.Id,
elementName: cta.name,
ctaId: cta.ctaId,
targetUrl: cta.targetUrl,
});
}
// Public method to manually refresh
async refresh() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to refresh floating elements:', error);
throw error;
}
}
// Public method to get current floating elements
getFloatingElements() {
return [...this.floatingElements];
}
}
// Initialize the component when DOM is ready
document.addEventListener('DOMContentLoaded', () => {
// Get product and table parameters from data attributes
const container = document.getElementById('bantuan-divs-container');
const product = container.getAttribute('data-product') || 'ruangguru';
const table = container.getAttribute('data-table') || 'rg_floating_icon';
new FloatingDivsComponent(product, table);
});
// Export for use in other modules if needed
if (typeof module !== 'undefined' && module.exports) {
module.exports = FloatingDivsComponent;
}
</script> <div id="wp-install-nudge" style="
position: fixed;
bottom: 0rem;
right: 0;
z-index: 999;
cursor: pointer;
"></div>
<script>
(function (w, d, s, o, f, js, fjs) {
w['Sales-Nudge-Widget'] = o; w[o] = w[o] || function () { (w[o].q = w[o].q || []).push(arguments) };
js = d.createElement(s), fjs = d.getElementsByTagName(s)[0];
js.id = o; js.src = f; js.async = 1; fjs.parentNode.insertBefore(js, fjs);
}(window, document, 'script', 'wpInstallNudge', 'https://cdn-web-2.ruangguru.com/sales-nudge/6198a95130/dist/widget.js'));
wpInstallNudge('init', { targetElementId: 'wp-install-nudge', clientTarget: 'ruangguru_blog' });
</script>
<script>
// note: disabled due to auto reload page
// var lastScrollTop = 0;
// $(window).scroll(function(event){
// var st = $(this).scrollTop();
// if (st > lastScrollTop){
// $('#wp-install-nudge').slideDown( "slow", function() {});
// } else {
// $('#wp-install-nudge').slideUp( "slow", function() {});
// }
// lastScrollTop = st;
// });
// $(document).ready(function () {
// $("#wp-install-nudge").hide();
// });
$('#wp-install-nudge').click(function(){
Analytics.track("promotion__install_nudge__click",
{
user_email: "ruangguru@blog.com",
cta_link: widgetData.dataConfig.target_link
}).catch((err) => {
console.log("tracker error", err);
});
});
</script>
</footer>
<div id="__next"></div>
<script type="speculationrules">
{"prefetch":[{"source":"document","where":{"and":[{"href_matches":"\/blog\/*"},{"not":{"href_matches":["\/blog\/wp-*.php","\/blog\/wp-admin\/*","\/blog\/wp-content\/uploads\/*","\/blog\/wp-content\/*","\/blog\/wp-content\/plugins\/*","\/blog\/wp-content\/themes\/ruangguru\/*","\/blog\/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]}
</script>
<script>
async function getCtaDetails(ctaIds) {
const endpoint =
" https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/CTA/views/CTA?offset=0&limit=10&where=(ctaId,in," + ctaIds.toString() + ")";
try {
const response = await fetch(endpoint, {
headers: {
"xc-token": "-hG2nBDJzSj0agSgNtcJx97M4F02y54nUMoY6plJ",
},
});
const data = await response.json();
const ctaList = data?.list || [];
const ctaMap = new Map();
for (const ctaData of ctaList) {
ctaMap.set(ctaData.ctaId, ctaData);
}
return ctaMap;
} catch (error) {
console.error("Error fetching CTA details:", error);
return new Map();
}
}
async function replaceCTA() {
const regex = /{{cta\((‘(.*?)’|“(.*?)”)\)}}/g;
const bodyHTML = document.body.innerHTML;
const matches = Array.from(bodyHTML.matchAll(regex));
const ctaIds = matches.map((match) => {
let ctaId = match[2] ?? match[3];
return ctaId;
});
const ctaMap = await getCtaDetails(ctaIds);
const replacedHTML = bodyHTML.replace(regex, (match, _inner, ctaId1, ctaId2) => {
const ctaId = ctaId1 ?? ctaId2;
const ctaData = ctaMap.get(ctaId);
if (ctaData) {
return `<a href="https://cta.ruangguru.com/${ctaData.ctaId}" target="_${ctaData.targetType}" style="position:relative;display:inline-block;">
<img src="${ctaData.imageUrl}" loading="lazy" alt="${ctaData.altText}" />
</a>`;
} else {
return match;
}
});
document.body.innerHTML = replacedHTML;
}
</script>
<meta name="author" content="Ruangguru Tech Team">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PVNLZFT" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- Tracker -->
<script type="text/javascript" src="https://cdn-web-2.ruangguru.com/landing-page-web/public/staticpages/global-assets/js/cta.js"></script>
<script src="https://unpkg.com/@dotlottie/player-component@latest/dist/dotlottie-player.mjs" type="module"></script>
</body>
</html>