Question

A clock fitted with a pendulum and another with a spring indicate correct time on earth. Which shows correct time on the moon?

(a) Clock fitted with pendulum

(b) Clock fitted with spring

(c) Both the clocks

(d) Neither of the clocks

The question was posed to me in a job interview.

This is a very interesting question from Gravitational Potential Field in chapter Mechanical Properties of Solids of Engineering Physics I

Answer 1

The correct option is (c) Both the clocks

The best explanation: A clock fitted with spring will show the correct time on the moon because its time period is not affected by the variation in g.