WBCS.LIVE practice question

A pendulum clock that keeps correct time on the earth, is taken to moon. It will then run

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

Answer options

  1. at correct rate.
  2. 6 times faster.
  3. √6 times faster.
  4. √6 times slower.

Correct answer and explanation

Correct answer: √6 times slower.

Explanation: ✅ Correct Answer: D. √6 times slower. 📚 Explanation: The time period of a pendulum is inversely proportional to the square root of the gravitational acceleration (g). Since gravity on the moon is about 1/6th of that on Earth, the time period increases. An increase in the time period means each swing takes longer, so the clock runs 'slower' by a factor of the square root of 6. This is a standard physical result of changing gravitational environments.