Question

the time taken by a pendulum to complete 2.5 oscillations in 5 seconds what is the time period of Pendulum

Answer 1

the time is 2 of pendulum

Answer 2

Heya

Given that time taken by a pendulum to complete 2.5 oscillation is 5 sec

⇒5sec= 2.5
⇒1 sec= 2.5/5= 0.5 

So its frequency is 0.5 oscillations per second. We know that
⇒Time period= 1/frequency.
⇒Time period= 1/ 0.5
⇒Time period= 2 sec.

Hope it helps :)