A Ray of light travelling in air enters obliquely into water does the light ray bend towards the normal or away from the normal? Why?
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when a ray of light travels from air into water obliquely,it bends towards the normal.This is because water is optically denser than air. On entering water,speed of light decreases and the light bends towards normal.
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Explanation:
We know water is denser than air. When the light travels through air then the speed of light remains same as it is. But denser medium cause decreasing the speed of light. So when the light enters in the water from air, the speed of light decreases. When the speed of light decreases then the light bends towards the normal.
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