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The equation of a plane progressive wave...

The equation of a plane progressive wave is given by`y = 0.025 sin (100 t + 0.25 x)`.The frequency of this wave would be

A

`(50)/(pi) Hz`

B

`(100)/(pi) Hz`

C

`100 Hz`

D

`50 Hz`

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The correct Answer is:
A
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