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When a sound wave of wavelength λ is propagating in a medium, the maximum velocity of the particle is equal to the wave velocity. The amplitude of wave is
Options
(a) λ
(b) λ/2
(c) λ/2π
(d) λ/4π
Correct Answer:
λ/2π
Explanation:
Maximum particle velocity (vₚ)ₘₐₓ = aω
where a is the amplitude of the wave and ω is the angular frequency
Wave velocity, v = λʋ
where λ is the wavelength of a wave and ʋ is a frequency of a wave.
Given : vₚ = v .·. aω = λʋ or a × 2πʋ = λʋ or a = λ/2π
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- Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass
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Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In p- type semiconductor, the acceptor level lies
- In adiabatic expansion, product of PV
- Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass
- A body of mass 0.25 kg is projected with muzzle velocity 100 m/s from a tank
- If threshold wevelength for sodium is 6800 Å, the work function will be
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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