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Byju's Answer

Standard XII

Physics

Hertz's Observations

A wave is mov...

Question

A wave is moving towards positive x-axis as shown in figure. Then the point(s) at which acceleration and velocity of particle are parallel to each other

A, D

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B, C

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A, C

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Solution

The correct option is D A, C
Since the wave is moving towards right, the direction of velocity of points is as given-
A-downwards
B-upwards
C-upwards
D-downwards
Also the direction of acceleration of particle is always towards the mean position. Hence the direction of acceleration of particle is given as-
A-downwards
B-downwards
C-upwards
D-upwards
Hence, the correct answer is option D.

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