1.

Assertion and Reason.Mark the correct choice as Assertion (A): The distance between two celestial bodies is measured by the unit of light year. Reason (R) : The distance travelled by the light in one year in vacuum is called one light year(a) Both A and R are true but R is not the correct reason. (b) Both A and R are true and R is the correct reason. (c) A is true but R is false. (d) A is false but R is true

Answer»

(a) Both A and R are true but R is not the correct reason.



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