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The frequency of the sinusoidal wave y...

The frequency of the sinusoidal wave
`y=0.40 cos [2000 t +0.80 x]` would be

A

1000 Hz

B

2000 Hz

C

20 Hz

D

1000 / `pi` Hz

Text Solution

Verified by Experts

The correct Answer is:
D
`2pi`f = 2000
`therefore` f = 1000/`pi` Hz
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