Question

A simple pendulum makes 10 oscillations in 20 seconds. What is the time period and frequency of its oscillation?
[2 marks]
[Exemplar]
[Time period, Frequency]

Answer 1

Solution:
Given that the pendulum makes 10 oscillations in 20 seconds.
So, it makes 1 oscillation in $\frac{20}{10}=2sec$

Hence, the time period = 2 s
[1 mark]

We know,
$Frequency=\frac{1}{T}=\frac{1}{2}=0.5Hz$
[1 mark]

Therefore, the time period and frequency of its oscillation are 2 s and 0.5 Hz respectively.