Q. How does the time period of pendulum vary with length
A) $\sqrt{L}$
B) $\sqrt{\frac{L}{2}}$
C) $\frac{1}{\sqrt{L}}$
D) $2L$
Explanation
(a) $Time\ period\ T = 2\pi\sqrt{\frac{L}{g}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.