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 [`nT_(1)=(n-1)T_(2)`, where `T_(1)` is time period of shorter length & `T_(2)` be time period of longer length and n are no. of oscillations completed]

Options

A. 5
B. 1
C. 2
D. 3

Answer

C