Q. The period of a simple pendulum is doubled, when
A) Its length is doubled
B) The mass of the bob is doubled
C) Its length is made four times
D) The mass of the bob and the length of the pendulum are doubled
Explanation
(c) $T = 2\pi\sqrt{\frac{l}{g}} \Rightarrow T \propto \sqrt{l}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.