Problem 7Q

If a pendulum clock is accurate at sea level, will it gain or lose time when taken to high attitude? Why?

Solution 7Q

The equation for pendulum motion is:

As we gain altitude the value of constant of gravity ‘g’ decreases.

If a pendulum clock which is accurate at sea level is taken to high altitude it will slow down. Time period is inversely proportional to square root of ‘g’.

When ‘g’ decreases Time period ‘T’ increases.

So the clock will slow down.