A) 0.8 T
B) 0.25 T
C) 2 T
D) 4 T
Correct Answer: C
Solution :
When lift is at rest, \[T=2\pi \sqrt{l/g}\] If acceleration becomes g/4 then \[{T}'=2\pi \sqrt{\frac{l}{g/4}}=2\pi \sqrt{\frac{4l}{g}}=2\times T\]
You need to login to perform this action.
You will be redirected in
3 sec
