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Question

Three rings P, Q and R are dropped at the same time over identical hollow magnets as shown below:

Which of the following describes the order in which the ring P, Q and R reach the bottom of the magnet?


A

They arrive in the order, P, Q, R.

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B

They arrive in the order P, R, Q.

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C

Rings P and R arrive simultaneously, followed by Q.

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D

Rings Q and R arrive simultaneously, followed by P.

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Solution

The correct option is C

Rings P and R arrive simultaneously, followed by Q.


Plastic ring P and copper ring R will not suffer any repulsive force. So, they will fall together first.


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