Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following {Assume negligible air friction}

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Insulating ball will reach the earth’s surface earlier than the metal ball

Both will reach the earth’s surface simultaneously.

Time taken by them to reach the earth’s surface will be independent of the properties of
their materials

Metal ball will reach the earth’s surface earlier than the insulating ball

answer is B.

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Detailed Solution

Due to earth’s magnetic field, eddy currents will be induced in the conducting ball, which causes an opposing force in upward direction. This upward force slows down the metal ball and hence the insulating ball will reach the earth's surface early.

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