A simple pendulum completes 20 oscillations in 40 seconds. What is its time peri

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Question: A simple pendulum completes 20 oscillations in 40 seconds. What is its time period? (2021)

Options:

Correct Answer: 2 s

Exam Year: 2021

Solution:

Time period (T) = Total time / Number of oscillations = 40 s / 20 = 2 s.

A simple pendulum completes 20 oscillations in 40 seconds. What is its time period? (2021)

A simple pendulum completes 20 oscillations in 40 seconds. What is its time period? (2021)

Step 1: Understand what an oscillation is. An oscillation is one complete movement back and forth of the pendulum.
Step 2: Identify the total time taken for the oscillations. In this case, it is 40 seconds.
Step 3: Identify the number of oscillations completed. Here, it is 20 oscillations.
Step 4: Use the formula for time period (T), which is Total time divided by Number of oscillations.
Step 5: Plug in the values: T = 40 seconds / 20 oscillations.
Step 6: Calculate the result: T = 2 seconds.

Time Period of a Pendulum – The time period (T) is the time taken for one complete oscillation of the pendulum.