A simple pendulum is placed at a place where its distance from the earth's surface is equal to the radius of the earth. If the length of the string is 4 m, then the time period of small oscillations will be s. [take g= 2 m s-2]
Answer
8
Solution
g'= g(1+h/R)2= g4 ( h=R)
T=2 lg'=2 4 4 2
=2 4 =8 s
Answer: 8