A simple pendulum has a time period T 1 when on the earth’s surface, and T 2 when taken to a height R above the earth’s surface, where R is the radius of the earth. The value of T 2 /T 1 is:
A
1
B
C
4
D
2
Text Solution
Verified by ExpertsThe correct answer is:
D
T ∝ 
i.e. 
= 
g 1 ⇒ acceleration due to gravity on earth’s surface = g
g 2 ⇒ acceleration due to gravity at a height h = R from earth’s surface = g/4
⇒ 
= 2
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