Question:
A simple pendulum doing small oscillations at a
place R height above earth surface has time period
of T1 = 4 s. T2 would be it’s time period if it is
brought to a point which is at a height 2R from
earth surface. Choose the correct relation [R =
radius of Earth]:
(1) T1 = T2 
(2) 2T1 = 3T2
(3) 3T1 = 2T2
(4) 2T1 = T2
                                                               JEE -2024
Solution:                
A simple pendulum doing small oscillations at a place R height above earth surface has time period of T1 = 4 s. T2 would be it's time period if it is brought to a point which is at a height 2R from earth surface. Choose the correct relation [R = radius of Earth]: (1) T1 = T2 (2) 2T1 = 3T2 (3) 3T1 = 2T2 (4) 2T1 = T2 JEE -2024

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