Physics
Grade-10
Easy
Question
When starlight enters the Earth’s atmosphere, it bends _____.
- Towards the normal line
- Away from the normal line
- Along the normal line
- Does not bend
Hint:
When light moves from rarer to denser mediums, the rays are bent towards the normal.
The correct answer is: Towards the normal line
Whenever light travels from one medium to another, the rays bend towards or away from the normal. This is called refraction. When light moves from rarer to denser mediums, the rays are bent towards the normal.
When starlight enters into the earth's atmosphere it undergoes repeated refraction. Since during atmospheric refraction, the starlight bends towards normal,
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