WBCS.LIVE practice question

If the length of a simple pendulum is increased by four times, what will happen to its time period?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. It becomes four times.
  2. It remains the same.
  3. It is reduced to half.
  4. It is doubled.

Correct answer and explanation

Correct answer: It is doubled.

Explanation: āœ… Correct Answer: D) It is doubled. šŸ“š Explanation: The time period (T) of a simple pendulum is directly proportional to the square root of its length (L). Mathematically, if the length becomes 4L, the new time period becomes the square root of 4, which is 2 times the original period. This means a longer pendulum takes more time to complete a single swing.