| ⇦ | 
| ⇨ |
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 parallel plate condenser has a uniform electric field E(V/m) in the space between
- A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof
- When 10¹⁹elecrons are removed from a neutral metal plate through some process,
- When a mass m is attached to a spring, it normally extends by 0.2 m.
- The minimum wavelength of X-rays produced in a Collidge tube operated
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A parallel plate condenser has a uniform electric field E(V/m) in the space between
- A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof
- When 10¹⁹elecrons are removed from a neutral metal plate through some process,
- When a mass m is attached to a spring, it normally extends by 0.2 m.
- The minimum wavelength of X-rays produced in a Collidge tube operated
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