COMEDK · Physics · 16. Waves and Sound
The equation of a progressive wave can be given by \(y=15 \sin (660 \pi t-0.02 \pi x) \mathrm{cm}\). The frequency of the wave is
- A \(330 \mathrm{~Hz}\)
- B \(342 \mathrm{~Hz}\)
- C \(365 \mathrm{~Hz}\)
- D \(660 \mathrm{~Hz}\)
Answer & Solution
Correct Answer
(A) \(330 \mathrm{~Hz}\)
Step-by-step Solution
Detailed explanation
Given, equation of progressive wave, \[ y=15 \sin (660 \pi t-0.02 \pi x) \] Comparing this equation with standard equation of progressive wave as \(y=A \sin \left(\frac{2 \pi}{T}, t-\frac{2 \pi}{\lambda}, x\right)\) We get,…
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