A pendulum swings to and fro. If the length of the pendulum is 1 m, what is the

Practice Questions

Q1
A pendulum swings to and fro. If the length of the pendulum is 1 m, what is the time period of the pendulum? (Take g = 10 m/s²)
  1. 1 s
  2. 2 s
  3. 3 s
  4. 4 s

Questions & Step-by-Step Solutions

A pendulum swings to and fro. If the length of the pendulum is 1 m, what is the time period of the pendulum? (Take g = 10 m/s²)
  • Step 1: Identify the formula for the time period of a pendulum, which is T = 2π√(l/g).
  • Step 2: Determine the length of the pendulum (l). In this case, l = 1 m.
  • Step 3: Identify the value of g (acceleration due to gravity). Here, g = 10 m/s².
  • Step 4: Substitute the values of l and g into the formula: T = 2π√(1/10).
  • Step 5: Calculate the value inside the square root: 1/10 = 0.1.
  • Step 6: Find the square root of 0.1: √0.1 ≈ 0.316.
  • Step 7: Multiply by 2π: T ≈ 2π * 0.316.
  • Step 8: Calculate 2π * 0.316 to get the approximate time period: T ≈ 2 s.
  • Pendulum Motion – The time period of a simple pendulum is determined by its length and the acceleration due to gravity.
  • Formula Application – Understanding how to apply the formula T = 2π√(l/g) correctly.
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