JEE Advanced 2020 Full Test 5 Paper 2

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Question : 14 of 54

Marks: +1, -0

A string PQR is fixed between two rigid supports separated by distance L. The string is vibrating in its fundamental mode as shown in the figure. Choose the correct alternative(s). (Point Q is the mid-point of the string)

Point Q on the string will never have potential energy.
Energy of the portion PQ is constant.
Point Q on the string will have maximum potential energy when its kinetic energy is zero.
Energy of the string PQR is constant but transfer of energy takes place between portions PQ and QR.

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