Question

a simple pendulum takes 30 seconds to complete 90 oscillations so the time period of the pendulum is

Answer 1

Time period = 1/frequency

Frequency, i.e., per second.
Hence, the pendulum oscillates 3 times in 1sec.
[90/30].

time period = 1/frequency
time period = 1/3
time period = 0.33

Answer 2

Answer:

1.6 ans

Explanation:

time taken for 20 oscillations = 32 s

times for the 1 oscillation = 32/20s =1.6s