Q.

A 5 kg body has moment of inertia 9 kg/m2 is suspended from a steel wire of  negligible mass whose couple per unit twist is 49 Nm/rad. It executes small  angular oscillations with a time period of

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

a

2.5 s

b

9π7s

c

0.4 s

d

6π7s

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

For torsional pendulam,T=2πIc I is moment of inertia ; c is couple per unit twistsubstitute the given values I=9 N sq met; C=49Nm/rad⇒T=2π949 ⇒T=2π37 ⇒T=6π7
Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
How to Join IIT after 10th
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
How to Join IIT after 10th
whats app icon