Will a pendulum clock gain or lose time when take to the top of a mountain?

Will a pendulum clock lose or gain time when taken to the top of a mountain?

Will a pendulum clock lose or gain time when taken to the top of a mountain ?

How does the time period of a simple pendulum change as it moved from from sea level to the top of a mountain ?

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

When a pendulum clock gains time, what adjustiment should be made?

The ratio of the height of the mountain and the depth of a mine, if a pendulum swings with the same period at the top of the mountain and at the bottom of the mine is

when a pendulum clock gains time , what adjustments should be made ?