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NEST2019PhysicsMagnetic Properties of Matter

A magnet of weight 2 N is placed on a non-magnetic horizontal table of weight 20 N. Another magnet of identical geometry is kept on the underside of the table top and aligned exactly with the upper magnet but with opposite polarity. The magnetic force on the lower magnet due to the upper one is thrice the weight of the lower magnet. If this magnetic force is 6 N , then

Options

  1. Athe reaction force on the table due to the earth's gravitational field is 20 N .
  2. Bthe normal reaction of the table on the upper magnet is 8 N .
  3. Cthe lower magnet will not fall.
  4. Dthe normal reaction of the table on the lower magnet is 4 N .

Correct answer

D. the normal reaction of the table on the lower magnet is 4 N .

Step-by-step solution

No solution available.

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