60 . A vehicle with a horn of frequency n is moving with a velocity of 30 m/s in a…
Physics · JEE Main · NTA Exams — Oscillations and Waves
60 . A vehicle with a horn of frequency n is moving with a velocity of 30 m/s in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency (n + n1). If velocity of sound in air is 300 m/s, n1 would be- n1 = 10 n
- n1 = 0
- n1 = 0.1 n
- n1 = – 0.1 n
Answer
(B) n1 = 0
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The displacement of an object attached to a spring and executing simple harmonic motion is given by x=2 10^…
- A siren placed at a railway platform is emitting sound of frequency 5 kHz. A passenger sitting in a moving…
- Four simple harmonic motions. x1 = 8 sin ωt; x2 = 6 sin (ωt + π/2); x3 = 4 sin (ωt + π) and x4 = 2 sin (ωt +…
- The expression for the motion of block in damped oscillation can be represented as:
- A uniform wire of length L, diameter D and density S is stretched under a tension T. The correct relation…
- A string of 5.5 m length has a mass 0.035 kg. If the tension in the string is 77 N, then the speed of wave on…
- A particle executes simple harmonic motion between x = –A and x = + A. The time taken for it to go from 0 to…
- If a conservative force is acting on a system in SHM. The total mechanical energy is:
More Oscillations and Waves questions · Browse all practice questions