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Question

Assertion(A): The sky appear dark instead of blue to an astronaut.

Reason(R) : Scattering of sunlight cannot happen due absence of atmosphere in outer space.

A
Both (A) and (R) are true and (R) is correct explanation of (A).
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B
Both (A) and (R) are true and (R) is not correct explanation of (A).
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C
(A) is true but (R) is false.
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D
(A) is false but (R) is true.
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Solution

The correct option is A Both (A) and (R) are true and (R) is correct explanation of (A).
Scattering of light is the phenomenon that results the sky to appear blue. Fine dust particles in the earth's atmosphere scatters the sunlight. In the outer space due to absence of atmosphere scattering of light cannot happen. Thus, the sky appears dark instead of blue to an astronaut.

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