Question

Jason knows that the equation to calculate the period of a simple pendium T=2π√L/8, where T is the period, L is the length of the rod and g is the acceleration due to gravity. He who knows that the frequency (f) of the pendulum is the reciprocal of period. How can he express L in terms of g and f?
$t =2\pi\sqrt{ \frac{l}{8} }$
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Answer 1

Answer: L can be expressed in terms of g and f as

L = g/(2πf)^2

Explanation: Please see the attachments below