Question

For a simple pendulum, relation between time period $T$, length of pendulum $l$ and acceleration due to gravity $g$ is given by :

• A. $T=2\pi \frac{l}{\sqrt{g}}$
• B. $T=2\pi \sqrt{\frac{l}{g}}$
• C. $T=2\pi \frac{l}{g}$
• D. None of these

Answer 1

The correct option is B $T=2\pi \sqrt{\frac{l}{g}}$

Time period of simple pendulum is given by $T=2\pi \sqrt{\frac{l}{g}}$

where $l$ is the length of pendulum and $g$ is the acceleration due to gravity.