Question

The length of a simple pendulum is $39.2/{\pi }^{2}m$. If $g=9.8m/{\sec }^2$, the value of time period is:

• A. 4 sec
• B. 8 sec
• C. 2 sec
• D. 3 sec

Answer 1

Answer: (A)

$T=2\pi \sqrt{\frac{39.2}{9.8\times {\pi }^2}}=4\sec$