When a sound wave of wavelength λ is propagating in a medium,

When A Sound Wave Of Wavelength Is Propagating In Physics Question

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

Related Questions:

  1. A 1kg stone at the end of 1 m long string is whirled in a vertical circle at constant speed
  2. An electric motor runs on DC source of emf 200 V and draws a current of 10 A.
  3. A spherical shell of radius 10cm is carrying a charge q. If the electric potential
  4. An automobile moves on a road with a speed of 54 km h⁻¹. The radius of its wheels
  5. If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A

Topics: Waves (80)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*