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The angular dispersion produced by a small angle prism placed in air

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Important Questions on Refraction of Light

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Refraction of Light>Evaluation Test>Q 17
Between the primary and secondary rainbows, there is a dark band known as Alexander's dark band. This is because
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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 5 - Refraction of Light>Evaluation Test>Q 18
Assertion: The rainbow is seen sometimes in the sky when it is raining. When one sees a rainbow, one's back is towards the sun.

Reason: Internal reflection from water droplet causes dispersion. The final ray is in the backward direction.