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JEE Advanced 2020 Paper 1

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Question : 2

Total: 54

A light disc made of aluminium (a nonmagnetic material) is kept horizontally and is free to rotate about its axis as shown in the figure. A strong magnet is held vertically at a point above the disc away from its axis. On revolving the magnet about the axis of the disc, the disc will (figure is schematic and not drawn to scale)

[JEE Adv 2020 P1]

rotate in the direction opposite to the direction for magnet's motion
rotate in the same direction as the direction of magnet's motion
not rotate and its temperature will remain unchanged
not rotate but its temperature will slowly rise

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