Science, asked by priya146, 1 year ago

please solve this question

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Answered by maitridesai
1
A..The student is suffering from Myopia..

Causes are.. Elongation of eye ball.. Decrease in focal length of eye lens.. Ciliary muscles are unable to adjust the eye lens..

Correction..Using a concave lens before the eye..( Spectacles )

B..The twinkling of a star is due to atmospheric refraction of starlight..

The starlight, on entering the earth’s atmosphere, undergoes refraction continuously before it reaches the earth..
The atmospheric refraction occurs in a medium of gradually changing refractive index..

Hope it helps..;)
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