Question 52014PhysicsWAEC
The period of a simple pendulum X is 5 s. What is the period of a simple pendulum Y which makes 50 vibrations in the same time it takes X to make 20 vibrations?
A
12.5s
B
2.5s
C
2.0s
D
1.2s
Step-by-Step Explanation
The period of a pendulum is the time it takes to complete one full vibration. If pendulum X has a period of 5 seconds for 20 vibrations, it takes 100 seconds in total. Since pendulum Y makes 50 vibrations in the same 100 seconds, its period is 100 seconds divided by 50, resulting in a period of 2 seconds.