JEE Advanced 2020 Full Test 5 Paper 1

Question : 3 of 54

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A standing wave is setup in a string fixed at both ends. Then

The sum of total energy per unit length at nodes and antinodes is constant
The total energy of a point midway between a node and an adjacent antinode is constant
If the string has a standing wave and a component of travelling wave, then the kinetic energy of the points of minimum amplitude is non-zero at some instant of time.
If the string has a standing wave and a component of travelling wave, then the potential energy of the points of maximum amplitude is non zero at some instant of time.

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