How does the refraction of light affect the deviation of light from a star?

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Refraction has no effect on the deviation of light from a star

Refraction causes the deviation of light from a star to increase

Refraction causes the deviation of light from a star to decrease

Refraction leads to a change in the star's apparent position from its actual position

answer is D.

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Detailed Solution

When light from a star passes through the Earth's atmosphere, it encounters different layers of air with varying densities and temperatures, which causes the light to refract. This refraction can cause the apparent position of the star to shift slightly, which is known as atmospheric refraction. Therefore, refraction plays a significant part in the deviation of light from a star.

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