Assertion : If the radius of earth is decreased kepping its constant, effective value of g may increase or decrease at pole. Reason : Value of g on the surface of earth is given by `g= (Gm)/(R^(2))`.A. If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not the correct explantion of Assertion.C. If Assertion is true, but the Reason is false.D. If Assertion is false but the Reason is true.

Assertion : If the radius of earth is decreased kepping its constant,

1.	Assertion : If the radius of earth is decreased kepping its constant, effective value of g may increase or decrease at pole. Reason : Value of g on the surface of earth is given by `g= (Gm)/(R^(2))`.A. If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not the correct explantion of Assertion.C. If Assertion is true, but the Reason is false.D. If Assertion is false but the Reason is true.
Answer» Correct Answer - D By changing the radius, moment of inertia will change. Hence, angular speed `omega` will change. But `omega` has no effect on the value of g on pole.

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