Gravitation Question 79
Question: Assertion: If earth suddenly stops rotating about its axis, then the value of acceleration due to gravity will become same at all the places.Reason: The value of acceleration due to gravity is independent of rotation of earth.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: C
Solution:
The value of g at any place is given by the relation, $ [{g}’=g-{{\omega }^{2}},R_{e}{{\cos }^{2}}\lambda ] $ When l is angle of latitude and w is the angular velocity of earth. If earth suddenly stops rotating, then $ [\omega =0] $ \ $ [{g}’=g] $ i.e., the value of g will be same at all places.
