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.
• B. They arrive in the order P, R, Q.
• C. Rings P and R arrive simultaneously, followed by Q.
• D. Rings Q and R arrive simultaneously, followed by P.

Answer 1

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.