KCET · Physics · Oscillations
Which of the following expressions represents a simple harmonic progressive wave ?
- A \(y=a \sin\) \((\omega t)\)
- B \(y=a \sin\) \((\omega t) \cos (k x)\)
- C \(y=a \sin\) \((\omega t-k x)\)
- D \(y=a \cos\) \((k x)\)
Answer & Solution
Correct Answer
(C) \(y=a \sin\) \((\omega t-k x)\)
Step-by-step Solution
Detailed explanation
A wave propagates then only disturbance travels and no material of the medium is permanently displaced. A harmonic wave is a sinusoidal wave. it can be written as sine or cosine function.sine or cosine term should be in both \(x\) and \(t\).
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