Question

Calculate how much time a second pendulum will lose in a day, if its length is in creased by 4% ? 

Answer 1

If the length is increased 4% then the time period of the seconds pendulum will become 2.04 sec; hence it will lose 0.04 sec in every 2.04 sec. Therefore it will lose.

0.04 / 2.04 x 86,400 sec in a day = 1694 sec in a day (nearly).