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Question
Complete the ray diagram showing its emergence into the air after passing through the prism.
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Solution
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If the speed of light in vacuum is 3 × 108 ms−1, find the speed of light in a medium of absolute refractive index 1.5.
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A Water pond appears to be 2.7 m deep. If the refractive index of water is 4/3, find the actual depth of the pond.
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(A) I
(B) II
(C) III
(D) IV
Trace the path of a ray of light incident at an angle of 45° on a rectangular glass slab. Write the measure of the angle of refraction, the angle of emergence and the lateral displacement suffered by the ray as it passes through the slab.
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(i) What is the relation between the refractive index of water with respect to air `("_aμ_\text(w))` and the refractive index of air with respect to water `("_\text(w)μ_ a)` .
(ii) If the refractive index of water with respect to air `("_aμ_\text(w))` is`5/3`. Calculate the refractive index of air with respect to water `("_\text(w)μ_ a)` .
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Write down a similar expression for aµg in terms of angle i and r.
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