Two pendulums `X` and `Y` of time periods `4 s` and `4.2s` are made to vibrate simultaneously. They are initially in same phase. After how many vibration of `X`, they will be in the same phase again ?

Pendulum A and B having periodic times 4 s and 4.2 s, are made to oscillate simultaneously. At time t = 0, they are in the same phase. After how many complete oscillations of A, they will be again in the same phase?

Pendulum A and B having periodic times 4 s and 4.2 s, are made to oscillate simultaneously. At time t = 0, they are in the same phase. After how many complete oscillations of A, they will be again in the same phase?

Two pendulums of time period 3 s and 8 s respectively starts oscillating simultaneously from two oppositee extreme positions. After how much time they will be in the same phase ?

Two pendulums of length 1.21 m and 1.0 m starts vibrationg. At some instant, the two are in the mean position in same phase. After how many vibrations of the longer pendulum, the two will be in phase ?

Two pendulums of length 1.21 m and 1.0 m starts vibrationg. At some instant, the two are in the mean position in same phase. After how many vibrations of the longer pendulum, the two will be in phase ?

Two pendulums of length 1.21 m and 1.0 m starts vibrationg. At some instant, the two are in the mean position in same phase. After how many vibrations of the longer pendulum, the two will be in phase ?

Two pendulums have time periods T and 5T//4 . They start SHM at the same time from the mean position After how many oscillations of the smaller pendulum they will be again in the same phase:

Two pendulum of time periods 3 s and 7 s respectively start oscillating simultaneously from two opposite extreme positions. After how much time they will be in same phase?

Two pendulum of time periods 3 s and 7 s respectively start oscillating simultaneously from two opposite extreme positions. After how much time they will be in same phase?