T, is the time period of simple pendulum on the earth's surface. Its time period becomes 
when taken to a height 
(equal to earth's radius) above the earth's surface. Then, the value of 
will be:
A
4
B
2
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
At surface of earth time period,
Acceleration due to gravity at height 
(i)
From equation (i)
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