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A magnet is dropped inside a long hollow vertical metal pipe. During the fall the acceleration of magnet.

$(a)\;\text{will decrease continuously} \\(b)\;\text{will decrease upto a value which is less than g} \\ (c)\;\text{may increase or decrease} \\ (d)\;\text{will decrease to zero and will attain terminal speed} $
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1 Answer

The falling magnet will experience an upward force and so the acceleration of magnet will decreases and then the magnet will a quire a terminal speed.
Hence d is the correct answer.


answered Mar 26, 2014 by meena.p
edited Sep 24, 2014 by thagee.vedartham

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