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The twinkling of star is due to...

The twinkling of star is due to

A

Diffraction

B

Refraction

C

Reflection

D

Advection

Text Solution

Verified by Experts

The correct Answer is:
B
Light coming from the star undergoes continuous refraction due to change in density of air.This results in t winkling of stars.
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Assertion :- The twinkling of stars is due to the fact that refractive index of the earth's atmosphere fluctuates. Reason :- In cold countries, the phenomenon of looming (i.e ship appears in the sky) takes place, because refractive index of air decreases with height.