Question

The period of a pendulum is $0.20seconds$. What is the frequency of the pendulum?

• A. $0.20Hz$
• B. $10.0Hz$
• C. $20.0Hz$
• D. $5.0Hz$
• E. The frequency cannot be determined without knowing the length of the pendulum

Answer 1

The correct option is D $5.0Hz$

Time period of oscillation $T=0.20$ seconds

$\therefore$ Frequency of oscillation $\nu =\frac{1}{T}=\frac{1}{0.20}=5.0$ $Hz$