A ray of light travelling in glass emerges into air. State whether it will bend towards the normal or away from the normal.

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Solution

We know that glass is a denser medium and air is a rarer medium. When a ray of light travels from a denser medium to a rarer medium, it bends away from the normal. So, the ray will bend away from the normal in the given case.

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Q. A ray of light goes from water into air. Will it bend towards the normal or away from the normal?

Q. Question 1
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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