COMEDK · Physics · 16. Waves and Sound
The displacement of a wave is given by \(y=20 \cos (\omega t+4 z)\). The amplitude of the given wave is
- A 10
- B 20
- C \(20 \sqrt{2}\)
- D \(10 \sqrt{2}\)
Answer & Solution
Correct Answer
(B) 20
Step-by-step Solution
Detailed explanation
The general equation of a traveling wave is given by \(y = A \cos(kx \pm \omega t + \phi)\) or \(y = A \cos(\omega t \pm kz + \phi)\), where \(A\) represents the amplitude of the wave. Comparing the given equation \(y = 20 \cos(\omega t + 4z)\) with the standard form…
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