A pendulum clock which keeps correct time at the surface of the earth is taken into a mine, then

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

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

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

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

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

A pendulum clock, which keeps correct time at sea level, loses 15s per day when taken to the top of a mountain. If the radius of the earth is 6400km , the height of the mountain is

A pendulum clock, which keeps correct time at sea level, loses 15s per day when taken to the top of a mountain. If the radius of the earth is 6400km , the height of the mountain is

A pendulum clock keeping correct time tis taken to high altitude