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The angle made by the string of a simple...

The angle made by the string of a simple pendulum with the vertical depends on time as `theta=pi/90sin[(pis^-1)t]`. Find the length of the pendulum if `g=pi^2ms^-2`

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
A

Here `2pisqrt((m)/(k)) = (2pi)/(omega) = (2pi)/(pi) = 2pisqrt((l)/(g)) rArr (l)/(g) = (1)/(pi^(2))` But `g = pi^(2)` therefore `l = 1 m`
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