Mass of bob of a simple pendulum is 10 gm. It makes 10 oscillations in 15 seconds passes the mean position with a speed 4 cm/sec, work done by the tension in the suspension thread in oscillation is :

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

5.6 J

6.8 erg

12.4 erg

zero

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

The displacement in a pendulum is always perpendicular to the tension in the string .F.d = 0 Thus, work done is equal to zero

Watch 3-min video & get full concept clarity