Spherical insulating ball and a spherical metallic ball of …

Physics Gravitation JEE Main 2023 MCQ (Single Correct)

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}

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

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

Both will reach the earth's surface simultaneously

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

Text Solution

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The correct answer is:

When metal is passing through magnetic field, eddy current will produce and it will oppose the

motion, so it will take more time.

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