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Belajar Lensa Cekung Lensa Cembung IPA SMP

<a href="https://yukk.co.id/blog/wp-content/uploads/2017/11/Kacamata-Master-Foto-Instagram-@owleyewearid.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="600" data-original-width="600" height="200" src="https://yukk.co.id/blog/wp-content/uploads/2017/11/Kacamata-Master-Foto-Instagram-@owleyewearid.jpg" width="200" /></a>Pernah bermain kaca pembesar?<br />
Lihat orang pakai kacamata?<br />
<br />
Itulah lensa....<br />
<br />
Ringkasan berikut tentang lensa ya...<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6Gd7WheYj_ETlI8PG5NdbdyXICGHRUanzr2q91odiF1wJQ6Cb1-l4dANV4_-1n3TPbTrZw7ICP-QLEfsVmX80NBhOL_LMzLWEGTtTIvMzBB1ZgVmCGt4LgjTmwPl3Cz8_ZA-SK_pNAIk/s1600/lensa+5.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="707" data-original-width="744" height="608" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6Gd7WheYj_ETlI8PG5NdbdyXICGHRUanzr2q91odiF1wJQ6Cb1-l4dANV4_-1n3TPbTrZw7ICP-QLEfsVmX80NBhOL_LMzLWEGTtTIvMzBB1ZgVmCGt4LgjTmwPl3Cz8_ZA-SK_pNAIk/s640/lensa+5.JPG" width="640" /></a></div>
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Belajar Lensa Cekung Lensa Cembung IPA SMP

Pernah bermain kaca pembesar? Lihat orang pakai kacamata? Itulah lensa.... Ringkasan berikut tentang lensa ya... …

12:04 PM

Belajar Pembiasan Cahaya

Belajar Pembiasan Cahaya

Pernahkah kalian melihat ikan di aquarium? meskipun si ikan berada di dasar akuarium, tapi tampak ikan berada dekat permukaan. Mengapa demikian? Hal ini akan kita pelajari melalui materi kali ini. Untuk lebih jelasnya simak video berikut ya... N…

1:27 PM

Pembahasan soal Cermin Cekung

Pembahasan soal Cermin Cekung

Pembahasan soal Cermin Cekung Jika ada pertanyaan silahkan tulis di kolom komentar ya...…

9:22 AM

Materi Cermin Cembung IPA SMP Kelas 8

<span style="font-family: "Times New Roman",serif; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-US;">Cermin Cembung adalah cermin yang bagian
cembungnya memantulkan cahaya</span><br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEii281vf8wGebOve-qHfmUApBKvFWv0e2artcdNvioK0O696yTFJWAQL9V3UGZ-eih-sBscaCdGKANr6JysKj56ntcSUwTFjHx3htu0n7Wq7_8_-DsaWjFtiE9hyphenhyphenQzgUoIpdmAKe_jjFuw/s1600/cermin+cembung.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="374" data-original-width="632" height="189" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEii281vf8wGebOve-qHfmUApBKvFWv0e2artcdNvioK0O696yTFJWAQL9V3UGZ-eih-sBscaCdGKANr6JysKj56ntcSUwTFjHx3htu0n7Wq7_8_-DsaWjFtiE9hyphenhyphenQzgUoIpdmAKe_jjFuw/s320/cermin+cembung.JPG" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Cermin Cembung yang dipasang di pinggir jalan</td></tr>
</tbody></table>
Bagian-bagian cermin cembung sebagai berikut:<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiR-Gd6ravpje1tGdYO59eA12L3aSqbOJsO6j8RU_BmET3MfBSmyM2SsKJ0E9slFoVV0r4VZc4dbRqmdwUl3x-3yVAn-neRCPbHnrpc9J3wXQigezG9o6guKBsFJS0CGNDlqnORtwjo_kk/s1600/bagian+cermin+cembung.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="495" data-original-width="791" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiR-Gd6ravpje1tGdYO59eA12L3aSqbOJsO6j8RU_BmET3MfBSmyM2SsKJ0E9slFoVV0r4VZc4dbRqmdwUl3x-3yVAn-neRCPbHnrpc9J3wXQigezG9o6guKBsFJS0CGNDlqnORtwjo_kk/s640/bagian+cermin+cembung.JPG" width="640" /></a></div>
<div>
<br /><span style="text-align: center;">Cermin cembung bersifat divergen
yaitu menyebarkan cahaya</span><div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgu9izZXpp2fZ6rM0JDsv3CwfxkwSQIHW5BI-Mxsk7eEFfCcvqwR0Pqh6QhjzivyMQJUd13wTbxBh-dil8SsGS1jqC1xGAiSE59yITmzmxrHup39jjLbu3pmhaWX9BNJaEgmfb5i2Gn_XU/s1600/divergen.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="213" data-original-width="368" height="185" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgu9izZXpp2fZ6rM0JDsv3CwfxkwSQIHW5BI-Mxsk7eEFfCcvqwR0Pqh6QhjzivyMQJUd13wTbxBh-dil8SsGS1jqC1xGAiSE59yITmzmxrHup39jjLbu3pmhaWX9BNJaEgmfb5i2Gn_XU/s320/divergen.JPG" width="320" /></a></div>
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<h2>
<a href="https://webipasmp.blogspot.com/2020/04/materi-cermin-cekung-ipa-smp-kelas-8.html" target="_blank"><i>Baca Juga : Materi Cermin Cekung IPA SMP Kelas 8</i></a></h2>
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Sinar–sinar utama pada cermin
cembung :</div>
<div>
<span style="text-indent: -18pt;">1.</span><span style="font-size: 7pt; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; line-height: normal; text-indent: -18pt;">     </span><span style="text-indent: -18pt;">Sinar
yang sejajar dengan sumbu utama, dipantulkan seolah–olah berasal dari fokus.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTiIjFfyyd8c0il608fsR3vZSSs_CALUu6t_2C3TNR_DQISuf0pqWHHdP6aV1uVSotClbdU5b3SxLpUT0GkKyoVbA4X-Nm1LV6QptZBNWsu3IkvjFMcSB4yudrjDc-0mzjcU00Itx3-mk/s1600/istimewa+1.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="221" data-original-width="355" height="398" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTiIjFfyyd8c0il608fsR3vZSSs_CALUu6t_2C3TNR_DQISuf0pqWHHdP6aV1uVSotClbdU5b3SxLpUT0GkKyoVbA4X-Nm1LV6QptZBNWsu3IkvjFMcSB4yudrjDc-0mzjcU00Itx3-mk/s640/istimewa+1.JPG" width="640" /></a></div>
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<span style="text-indent: -18pt;">2.</span><span style="font-size: 7pt; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; line-height: normal; text-indent: -18pt;">     </span><span style="text-indent: -18pt;">Sinar
yang menuju fokus dipantulkan sejajar dengan sumbu utama.</span><br />
<div>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSpNng-N_NxtBTYzwHjZMEsxQk1t3Mn6vNaLQaOy6aBu4fGf_PiE3eKGchOABPTQY5ExFat8eZsG_zfzGUuFDsqZcLbOqjfx-qSfLJLUrUfcPobS3Ni_6xHhbyNvlM5zt9qKcdRagysws/s1600/istimewa+2.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="189" data-original-width="306" height="395" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSpNng-N_NxtBTYzwHjZMEsxQk1t3Mn6vNaLQaOy6aBu4fGf_PiE3eKGchOABPTQY5ExFat8eZsG_zfzGUuFDsqZcLbOqjfx-qSfLJLUrUfcPobS3Ni_6xHhbyNvlM5zt9qKcdRagysws/s640/istimewa+2.JPG" width="640" /></a></div>
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<span style="text-indent: -18pt;">3.</span><span style="font-size: 7pt; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; line-height: normal; text-indent: -18pt;">     </span><span style="text-indent: -18pt;">Sinar
yang menuju pusat kelengkungan M, dipantulkan melalui titik itu juga.</span><div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAr9ARYXVFuTdrvtN6aYKaXzMORmw8DGuMu9MKN_AnoJoEVAaAm-WUuQsJO1y-gPORYZHovZPr7dGRW_OTZKXLKylk0MQDds8Eh7oOF3zUbkO5F1r_maNzFHCHnd58ovJtbfE624LJVBg/s1600/istimewa+3.JPG" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="202" data-original-width="366" height="352" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAr9ARYXVFuTdrvtN6aYKaXzMORmw8DGuMu9MKN_AnoJoEVAaAm-WUuQsJO1y-gPORYZHovZPr7dGRW_OTZKXLKylk0MQDds8Eh7oOF3zUbkO5F1r_maNzFHCHnd58ovJtbfE624LJVBg/s640/istimewa+3.JPG" width="640" /></a><br /><span style="font-family: "Times New Roman",serif; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-US;"><br /></span>
<span style="font-family: "Times New Roman",serif; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-US;"><b><br /></b></span>
<span style="font-family: "Times New Roman",serif; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-US;"><b>Pembentukan Bayangan pada Cermin Cembung</b></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqEghnb_jbzWwCJmvkx4DQSNJ5k0qUUearoMuA1FFhibqGVkOJzDWmzf0Rcsv2UzaOF_Q6VA9UECRcBYl7GxhyphenhyphentsLMIM0R64Z0tI035uMcw7A-Rm1bEkSt6yGdF8iVehrLKxkv_QvDLDY/s1600/bayngan+cembung.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="463" data-original-width="892" height="332" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqEghnb_jbzWwCJmvkx4DQSNJ5k0qUUearoMuA1FFhibqGVkOJzDWmzf0Rcsv2UzaOF_Q6VA9UECRcBYl7GxhyphenhyphentsLMIM0R64Z0tI035uMcw7A-Rm1bEkSt6yGdF8iVehrLKxkv_QvDLDY/s640/bayngan+cembung.JPG" width="640" /></a></div>
<span style="font-family: "Times New Roman",serif; font-size: 12.0pt; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: EN-US;"><b><br /></b></span>
<span style="color: red;">Setiap benda didepan cermin cembung pasti
menghasilkan bayangan maya, karena itu cermin cembung disebut cermin
maya dan digunakan untuk kaca spion.</span><br />
<span style="color: red;"><br /></span>
<h2>
<span style="color: blue;"><i><a href="https://webipasmp.blogspot.com/2017/03/pemantulan-cahaya-pada-cermin-datar.html" target="_blank">Baca Juga Materi Cermin Datar IPA SMP Kelas 8</a></i></span></h2>
<div class="MsoNormal" style="margin-left: 28.5pt;">
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<span style="font-family: Times New Roman, serif;">Cermin cembung disebut juga cermin negatif (maya), karena R dan f-nya negatif (dibelakang cermin).</span><br />
<span style="font-family: Times New Roman, serif;">Rumus di Cermin Cembung</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1Plb1uOCKCzN86HqnKFWdZzSHVqVk-DMPyuNP0NDssAnveAJqQIk-7jfuZbYQIjmDkKCr2EqAvwv83iv03xNIqyPDiiBJ52CpQbi7ntAmEGAlzyqzgYzNksgpIfjVyYtDcKwn4xqEUgw/s1600/Rumus+cembung.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="440" data-original-width="793" height="354" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1Plb1uOCKCzN86HqnKFWdZzSHVqVk-DMPyuNP0NDssAnveAJqQIk-7jfuZbYQIjmDkKCr2EqAvwv83iv03xNIqyPDiiBJ52CpQbi7ntAmEGAlzyqzgYzNksgpIfjVyYtDcKwn4xqEUgw/s640/Rumus+cembung.JPG" width="640" /></a></div>
<span style="font-family: Times New Roman, serif;"><br /></span>
<span style="font-family: Times New Roman, serif;">contoh soal;</span><br />
<span style="font-family: Times New Roman, serif;">Sebuah benda berada 30 cm dimuka sebuah cermin cembung. Jika jarak bayangan maya yang terbentuk 10 cm, berapakah jarak titik api cermin itu ?  Berapakah perbesarannnya ?</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihVTy9dSWTkogLMQ-UNHDAMsDZs8GpQhpN7tWX9EdUeF2kk7a6O3TR3RoP16lWoqPswfDU-UbuJL2szKZriHsPpSRUrggTtZwmeMpSGkOPeJFyWvrUy1rNOtKmatuSOA1sD4pB8xxjAHs/s1600/latihan.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="603" data-original-width="377" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihVTy9dSWTkogLMQ-UNHDAMsDZs8GpQhpN7tWX9EdUeF2kk7a6O3TR3RoP16lWoqPswfDU-UbuJL2szKZriHsPpSRUrggTtZwmeMpSGkOPeJFyWvrUy1rNOtKmatuSOA1sD4pB8xxjAHs/s640/latihan.JPG" width="396" /></a></div>
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Materi Cermin Cembung IPA SMP Kelas 8

Cermin Cembung adalah cermin yang bagian cembungnya memantulkan cahaya Cermin Cembung yang dipasang di pinggir jalan Bagian-bagian cermin cembung sebagai berikut: Cermin cembung bersifat divergen yaitu menyebarkan cahaya Baca Juga : Materi Cermin Cekung IPA SMP Kelas 8 Sinar–sinar utama pada cermin …

9:02 AM

Materi Cermin Cekung IPA SMP Kelas 8

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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjm12QjP665fEEJxGyU3sEwthk_NB1S0nk06t5ywvWgGufdOqB9XHx6FPuS6M1vdEefmlfN7IHOg4lIukewWpMeWbnTgbFg5Oym31fCFp3WCKM-t-ybY1CGRvJmZZuqgk3ly4Z787zCB9s/s1600/cermin+sendok.JPG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="498" data-original-width="352" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjm12QjP665fEEJxGyU3sEwthk_NB1S0nk06t5ywvWgGufdOqB9XHx6FPuS6M1vdEefmlfN7IHOg4lIukewWpMeWbnTgbFg5Oym31fCFp3WCKM-t-ybY1CGRvJmZZuqgk3ly4Z787zCB9s/s320/cermin+sendok.JPG" width="226" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Bayangan di sendo</td></tr>
</tbody></table>
Pernahkah kalian memakai melihat bayangan kalian di sendok yang bagian dalam? Bagian sendok yang bagian dalam merupakan contoh dari cermin cekung. Nah, Bagaimana itu cermin cekung selanjutnya... Yuk kita cek materi berikut...<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh95SFTEA6cbWVSjwilciBYh5Jqs8kzO3mQWpsaFll1B3VuT__nU3PS6bbTXjW9TVFHSOz5ZyQNrIMxXdLWZk1MhJIRi4bXqEjmfs9iRn9pgmA83Fyqnu8EFbhSbOQQx1GOyXIp_yzIwT0/s1600/cermin+cekung.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em; text-align: center;"><br /><img border="0" data-original-height="280" data-original-width="589" height="190" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh95SFTEA6cbWVSjwilciBYh5Jqs8kzO3mQWpsaFll1B3VuT__nU3PS6bbTXjW9TVFHSOz5ZyQNrIMxXdLWZk1MhJIRi4bXqEjmfs9iRn9pgmA83Fyqnu8EFbhSbOQQx1GOyXIp_yzIwT0/s400/cermin+cekung.JPG" width="400" /></a><br />
Cermin cekung adalah cermin yang bagian cekungnya memantulkan cahaya<br />
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Keterangan:</div>
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Su = sumbu utama</div>
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M = pusat kelengkungan</div>
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F = titik api / titik fokus</div>
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R = jari–jari kelengkungan</div>
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f  = jarak fokus</div>
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O = titik pusat optik</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkWhNKZbBwTtwAlvLHQAy4snxKi5QS3gCcO99SL97CdByU4mG_IJ9jaxHTb9TsqoQJzRnFemdzVhgPRKFRKsZhzFXwdA3X1FGUAceo1_vxQnKeHjjnzq4gr1mlPEcYjUrmwEe6MFyEoec/s1600/rumus+1.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="136" data-original-width="454" height="94" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkWhNKZbBwTtwAlvLHQAy4snxKi5QS3gCcO99SL97CdByU4mG_IJ9jaxHTb9TsqoQJzRnFemdzVhgPRKFRKsZhzFXwdA3X1FGUAceo1_vxQnKeHjjnzq4gr1mlPEcYjUrmwEe6MFyEoec/s320/rumus+1.JPG" width="320" /></a></div>
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Dalam belajar cermin cekung, diberikan ruang-ruang untuk memudahkan mempelajarinya<br />
I = ruang I, berada di antara titik pusat O dan titik focus F<br />
II = ruang II, berada di antara titik focus F dan pusat kelengkungan cermin M<br />
III = ruang III, berada di sebelah kiri titik pusat kelengkungan cermin M<br />
IV = ruang IV, berada di belakang cermin<br />
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Cermin cekung bersifat kongruen yaitu  mengumpulkan cahaya.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-gT-3cbXTj-S6svEJEckn0tyMiEJBr5kB2KWqQImD595hfNF2u4VxJpXHxMJOQ6SExQmcJBiMKR0jKlORqnkRh-H1_4rtLCL-aw0ADsmV7Sa-uSx9fUrr0_5WRRCw5YAW8nLFX2uNrHA/s1600/konvergensi+cermin+cekung.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="328" data-original-width="614" height="170" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-gT-3cbXTj-S6svEJEckn0tyMiEJBr5kB2KWqQImD595hfNF2u4VxJpXHxMJOQ6SExQmcJBiMKR0jKlORqnkRh-H1_4rtLCL-aw0ADsmV7Sa-uSx9fUrr0_5WRRCw5YAW8nLFX2uNrHA/s320/konvergensi+cermin+cekung.JPG" width="320" /></a></div>
<h2>
<b><span style="color: #0b5394;"><i><a href="https://webipasmp.blogspot.com/2017/03/pemantulan-cahaya-pada-cermin-datar.html#more">Baca Juga: Ringkasan Materi Cermin Datar</a></i></span></b></h2>
Pada Cermin cekung terdapat 3 sinar utama/ sinar istimewa. Sinar–sinar utama/istimewa pada cermin cekung yaitu:<br />
1.<span style="white-space: pre;"> </span>Sinar yang sejajar dengan sumbu utama dipantulkan melalui fokus.<br />
 <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhFbLUWxa8jv8q4TX6pbOxmWwgiOGnffGrl1MzuIh0ZmuK1zqo9xhqL6HS_uVHJ22hY17gq2yBrDeJ-utjRh6bosMh_kBmcyevLaWJUd0io8nVlMypRyHG6MAVRmOlADxBZIj1XqZ00cc/s1600/sinar+1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="186" data-original-width="281" height="131" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhFbLUWxa8jv8q4TX6pbOxmWwgiOGnffGrl1MzuIh0ZmuK1zqo9xhqL6HS_uVHJ22hY17gq2yBrDeJ-utjRh6bosMh_kBmcyevLaWJUd0io8nVlMypRyHG6MAVRmOlADxBZIj1XqZ00cc/s200/sinar+1.png" width="200" /></a><br />
2.<span style="white-space: pre;"> </span>Sinar yang melalui fokus dipantulkan sejajar sumbu utama.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5Bkr1W3umMCmZ24ah6WIU2HYS8UqI-3EVrP6iao07CcJQODOC4bbcwXIHfo-Tiao0vynnm8FwedsNl_BuDFestuDZA9IDC6UMQ2_nPCoTGIVT5H1ZA-FhdsNEd4HF82jtHS9IyIXBbC4/s1600/sinar+2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="184" data-original-width="270" height="136" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5Bkr1W3umMCmZ24ah6WIU2HYS8UqI-3EVrP6iao07CcJQODOC4bbcwXIHfo-Tiao0vynnm8FwedsNl_BuDFestuDZA9IDC6UMQ2_nPCoTGIVT5H1ZA-FhdsNEd4HF82jtHS9IyIXBbC4/s200/sinar+2.png" width="200" /></a></div>
3.<span style="white-space: pre;"> </span>Sinar menuju pusat kelengkungan m dipantulkan melalui titik itu juga.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqpUZasMi-pVIBSp_frOxg509GR1qAva5aw1TQxW5bzrQyt4IXX_qtGndnNmqxKCH87G_RakCpzEwzXdCo9MNU_YdCSk_ziOj-aSQaiaXW4kNlg8reQWPqebN_TSmkQOAU832v5UYfnvg/s1600/sinar+3.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="182" data-original-width="288" height="126" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqpUZasMi-pVIBSp_frOxg509GR1qAva5aw1TQxW5bzrQyt4IXX_qtGndnNmqxKCH87G_RakCpzEwzXdCo9MNU_YdCSk_ziOj-aSQaiaXW4kNlg8reQWPqebN_TSmkQOAU832v5UYfnvg/s200/sinar+3.png" width="200" /></a></div>
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Proses Pembentukan bayangan benda di Cermin Cekung<br />
1.<span style="white-space: pre;"> </span>Benda nyata / sejati di ruang I<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzDvkwMHW0WFQhP7CWOfiOdWdjygTorvu-OtD76vMJqX3E5SpaCGwurcTZ66rqfUJOFUpuhaeHANv6jF2X_Vz5wlIPZnfNfUtOKlzgEZA9yEer-IddIqHKi4STrt97fzLx3vMSwjBFE4U/s1600/bayangan+1.JPG" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="530" data-original-width="974" height="344" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzDvkwMHW0WFQhP7CWOfiOdWdjygTorvu-OtD76vMJqX3E5SpaCGwurcTZ66rqfUJOFUpuhaeHANv6jF2X_Vz5wlIPZnfNfUtOKlzgEZA9yEer-IddIqHKi4STrt97fzLx3vMSwjBFE4U/s640/bayangan+1.JPG" width="640" /></a><br />
2.<span style="white-space: pre;"> </span>Benda nyata / sejati di titik focus (F)<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhscypz_cUmdh9ePT0tWwuNSF18MeRD5JuqGXk48FTW2s61fapYe2j4VS0DqIeMRnApnN2fQ3qNdGYVqAIEbdZ2CNh427PkVaTA12tIZc92HaiDZDC4Y_0lsW28-iTR5TJKrhzDIBtz3NU/s1600/bayangan+2.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="489" data-original-width="613" height="510" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhscypz_cUmdh9ePT0tWwuNSF18MeRD5JuqGXk48FTW2s61fapYe2j4VS0DqIeMRnApnN2fQ3qNdGYVqAIEbdZ2CNh427PkVaTA12tIZc92HaiDZDC4Y_0lsW28-iTR5TJKrhzDIBtz3NU/s640/bayangan+2.JPG" width="640" /></a><br />
<span style="white-space: pre;">  </span><br />
3.<span style="white-space: pre;"> </span>Benda nyata/sejati di ruang II :<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWfaRmEjnO2-I1srBDsyE7dByhtPwFWKlURDEfMwOx4MF_zOsa6lOUg3KDwZExpCY1ddBtG5K8xFL4CmyYLSNwp95xB6z8dpCBWUbXGzmiAz2FgdQOSDy4CwGD4FqfOXuymLsJIlJ-dEg/s1600/bayangan+3.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="504" data-original-width="813" height="395" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWfaRmEjnO2-I1srBDsyE7dByhtPwFWKlURDEfMwOx4MF_zOsa6lOUg3KDwZExpCY1ddBtG5K8xFL4CmyYLSNwp95xB6z8dpCBWUbXGzmiAz2FgdQOSDy4CwGD4FqfOXuymLsJIlJ-dEg/s640/bayangan+3.JPG" width="640" /></a><br />
4.<span style="white-space: pre;"> </span>Benda nyata / sejati di M :<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3pZfxDusgot27hNDJ6VkE4_rp0D0J-A0e8g0Y5eBONEzrBWqIe4nbXmwVMbrsnp0dmcujpb5DLw8jcOrtHpImqCcDW_QypmmWlCRacN-cPUTHsb8lSr7mOBkto8NBKWGQQN-wCiLUY8o/s1600/bayangan+4.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="492" data-original-width="762" height="411" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3pZfxDusgot27hNDJ6VkE4_rp0D0J-A0e8g0Y5eBONEzrBWqIe4nbXmwVMbrsnp0dmcujpb5DLw8jcOrtHpImqCcDW_QypmmWlCRacN-cPUTHsb8lSr7mOBkto8NBKWGQQN-wCiLUY8o/s640/bayangan+4.JPG" width="640" /></a><br />
5.<span style="white-space: pre;"> </span>Benda nyata / sejati di ruang III :<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFcALsewZKgRzwDLPGsIXmSN-ChE57xqyWpXaql1BOhGq-0pWlaBBrF_aOeI5CuMLwd7Yp7W7-vHV7rbgWc7c21fmUnJEgYNJassRKYrxkbFyz8ESIgRhIxzZlsmnilWN6SH7aqqT2hdw/s1600/bayangan+5.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="468" data-original-width="741" height="404" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFcALsewZKgRzwDLPGsIXmSN-ChE57xqyWpXaql1BOhGq-0pWlaBBrF_aOeI5CuMLwd7Yp7W7-vHV7rbgWc7c21fmUnJEgYNJassRKYrxkbFyz8ESIgRhIxzZlsmnilWN6SH7aqqT2hdw/s640/bayangan+5.JPG" width="640" /></a><br />
6.<span style="white-space: pre;"> </span>Benda maya / semu di ruang IV :<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCl-pjdw02scBQNXLrsUK_3E01EC7Zik9JnPYQZ89hU1SO1TQMgl_T9uBtDcE5nERjM-HgvU_Od09_u6W7WTQCbOzdgxPSiumN2Ms5diliOLZo3gS6t_kR5DQ5rxkpxh2U1jIQTOJRNes/s1600/bayangan+6.JPG" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="402" data-original-width="808" height="318" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCl-pjdw02scBQNXLrsUK_3E01EC7Zik9JnPYQZ89hU1SO1TQMgl_T9uBtDcE5nERjM-HgvU_Od09_u6W7WTQCbOzdgxPSiumN2Ms5diliOLZo3gS6t_kR5DQ5rxkpxh2U1jIQTOJRNes/s640/bayangan+6.JPG" width="640" /></a></div>
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<b>Satu–satunya posisi benda pada cermin cekung yang menghasilkan bayangan maya / semu jika benda berada di ruang I.</b><br />
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<b>Dengan prinsip ruang, kita dapat menentukan letak dan sifat bayangan secara cepat. Yaitu dengan prinsip ruang Letak benda dan ruang bayangan berjumlah 5</b><br />
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<ul>
<li>jika ruang bayangan lebih besar dari ruang benda maka bayangan yang dihasilkan diperbesar</li>
<li>jika ruang bayangan lebih kecil dari ruang benda maka bayangan yang dihasilkan diperkecil</li>
</ul>
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contoh:<br />
<ul>
<li>Benda di ruang II, maka bayangan pasti di ruang III.  Karena III lebih besar dari II, dan berada di depan cermin, maka sifat bayangan yang terbentuk adalah diperbesar dan nyata</li>
<li>benda di ruang I, maka bayangan pasti di ruang IV  (I+IV = V) dan sifatnya diperbesar dan bersifat maya (tidak dapat ditangkap layar), ingat ruang IV ada di belakang cermin. Cermin secara normal akan menghasilkan bayangan di depan cermin bukan di belakang cermin</li>
</ul>
<h2>
<span style="color: blue;"><i><a href="https://webipasmp.blogspot.com/2020/04/materi-cermin-cembung-ipa-smp-kelas-8.html" target="_blank">Baca Juga: Materi Cermin Cembung IPA SMP kelas 8</a></i></span></h2>
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Cermin cekung disebut cermin positif, karena R dan f nya positif (di depan cermin)<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw0clRsDwuRQHj-Ukd05twLdUjYtd03lX9RvBBH2WonZwKHfVp3JHJu_L1plJHRB0uJ5PoZ9ajLGYOkaRuLOF-j28hXyvz4HP0HjETU9V7PmK-sCCoJzvIMmSXmlD0UyvModD2mlaVekg/s1600/perbesaran.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="462" data-original-width="1107" height="265" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhw0clRsDwuRQHj-Ukd05twLdUjYtd03lX9RvBBH2WonZwKHfVp3JHJu_L1plJHRB0uJ5PoZ9ajLGYOkaRuLOF-j28hXyvz4HP0HjETU9V7PmK-sCCoJzvIMmSXmlD0UyvModD2mlaVekg/s640/perbesaran.JPG" width="640" /></a></div>
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Materi Cermin Cekung IPA SMP Kelas 8

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7:51 AM


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