why does a Ray of light bend towards the normal when it enters from air in a glass slab and bends away from the normal when it emerges out into air?
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(1)when a ray of light goes from a rarer medium to a denser medium,it bends towards the normal
(2)when a ray of light goes from a denser medium to a rarer medium ,it bends away from the normal .☺
(2)when a ray of light goes from a denser medium to a rarer medium ,it bends away from the normal .☺
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Answer:
The ray of light undergoes refraction in both the cases due to which it bends.
Explanation:
When light enters from air to glass slab its speed decreases and bends towards the normal.
But when the light travels from glass slab to air its speed increases and bends away from the normal.
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