Question

A simple pendulum moves from one end to the other in 1/4 second . What is its frequency

Answer 1

Given - Time

Find - Frequency

Solution - Frequency = 1/Time period

Keep the values in formula to find the frequency.

Frequency = $\frac{1}{ \frac{1}{4} }$

Frequency = $\frac{1 \times 4}{1}$

Performing multiplication of numerator

Frequency = 4 Hertz

Hence, the frequency is 4 Hertz.

Answer 2

Answer:

the right answer is 2 because as time is given 1/4 and to complete one oscillation is called as period ie t+t=1/4+1/4=1/2

f=1/T

f=1/1/2=2Hz