| ⇦ | 
| ⇨ |
Two sources P and Q produce notes of frequency 660 Hz each. A listener moves from P to Q with a speed of 1 ms⁻¹. If the speed of sound is 330 m/s, then the number of beats heard by the listener per second will be
Options
(a) zero
(b) 4
(c) 8
(d) 2
Correct Answer:
4
Explanation:
∆f / f = v / C
(beats) /2 / f = v / C
Beats = 2 fv / C = 4
Related Questions: - A force acts on a 3.0 g particle in such a way that the position of the particle
- A particle is executing SHM along a straight line. Its velocities at distances
- If force(F),length(L) and time(T) be considered fundamental units, then the units of mass
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- In a transistor, the value of βis 100, then the value of α will be
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A force acts on a 3.0 g particle in such a way that the position of the particle
- A particle is executing SHM along a straight line. Its velocities at distances
- If force(F),length(L) and time(T) be considered fundamental units, then the units of mass
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- In a transistor, the value of βis 100, then the value of α will be
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.
Share this page with your friends
Leave a Reply