Question

Two simple pendulums of length 0.5 m and 20 m respectively
are given small linear displacement in one direction at the
same time. They will again be in the phase when the
pendulum of shorter length has completed oscillations
[nT₁=(n–1)T₂, where T₁ is time period of shorter length &
T₂ be time period of longer wavelength and n are no. of
oscillations completed]
(a) 5 (b) 1
(c) 2 (d) 3

Answer 1

(c) 2

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