plzzzzz...pls answer the question need not draw just explain that more the enough
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when refractive index of block is equal to refractive index of liquid in which it is immersed.
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a. when R.I of glass >R.I of liquid then speed of light in glass is less than speed of light in liquid
b.just opposite of above case
hope it helps......
b.just opposite of above case
hope it helps......
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