AP EAMCET · PHYSICS · Waves and Sound
If a travelling wave is given by \(y(x, t)=0.5 \sin (70.1 x-10 \pi t)\), where \(x\) and \(y\) are in metre, the time \(t\) is in second, then the frequency of the wave is
- A 6 Hz
- B 7 Hz
- C 4 Hz
- D 5 Hz
Answer & Solution
Correct Answer
(D) 5 Hz
Step-by-step Solution
Detailed explanation
\(\omega = 10\pi\) \(f = \frac{\omega}{2\pi} = \frac{10\pi}{2\pi} = 5 \text{ Hz}\)
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