What happens to the time period of a simple pendulum kept inside a life, when the lift (i) moves up with acceleration 'a'? (ii) moves down with acceleration 'a'?

What happens to the time period of a simple pendulum kept inside a lif

1.	What happens to the time period of a simple pendulum kept inside a life, when the lift (i) moves up with acceleration 'a'? (ii) moves down with acceleration 'a'?
Answer» Solution :(i) When LIFT is moving up with ACCELERATION .a. then RELATIVE acceleration = g+a Time PERIOD `T = 2pi sqrt(l/(g+a))` so when lift is moving up with UNIFORM acceleration time period of pendulum in it decreases. (ii) When lift is moving down with acceleration .a. time period `T= 2pi sqrt(l/(g-a))` (g-a = relative acceleration of pendulum). Sotime period of pendulum in the lift increases.