Question

What should be the ratio of the speed of light through the liquid to the speed through glass so
that there is no refraction of light at the boundaries of the glass block when the system is
illuminated by light of one colour?
[1]
Give reason too!​

Answer 1

Answer:

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Answer 2

Explanation:

Since there is no refraction of light at the boundaries of the glass block, it is possible only when the speed of light through the liquid as well as through the block is the same. Hence the ratio between the speed of light through the liquid to the speed of light through glass must be 1 (one).

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