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

Practice Questions

Q1
A simple pendulum completes 20 oscillations in 40 seconds. What is its time period? (2021)
  1. 1 s
  2. 2 s
  3. 0.5 s
  4. 0.25 s

Questions & Step-by-Step Solutions

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.
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