If y = 0.02 sin (30x − 400t) (SI units), the frequency of the wave is
A) 30 Hz
B) 15/π Hz
C) 200/π Hz
D) 400 Hz
E) 800π Hz

Name: If y = 0.02 sin (30x − 400t) (SI units), the frequency of the wave is A) 30 Hz B) 15/π Hz C) 200/π Hz D) 400 Hz E) 800π Hz
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Question

Quizplus · Accepted Answer

The frequency of a wave in the form $y = A \sin(kx - \omega t)$ is given by $f = \frac{\omega}{2\pi}$. Here, $\omega = 400$, so the frequency $f = \frac{400}{2\pi} = \frac{200}{\pi}$ Hz.

If Y = 002 Sin (30x − 400t) (SI Units), the Frequency of the Frequency