If y = 0.02 sin (30x ? 400t) (SI units), the angular frequency of the wave is

a. 30 rad/s
b. 30/2? rad/s
c. 400/2? rad/s
d. 400 rad/s
e. 40/3 rad/s

d

Physics & Space Science

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If y = 0.02 sin (30x? 400t) (SI units), the wave number is

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