Q. The periodic time of a simple pendulum of length $1\ m$ and amplitude $2\ cm$ is 5 seconds. If the amplitude is made $4\ cm.$ Its periodic time in seconds will be
A) 2.5
B) 5
C) 10
D) $5\sqrt{2}$
Explanation
(b) As periodic time is independent of amplitude
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.