| ⇦ | 
| ⇨ |
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 satellite in a circular orbit of radius R has a period of 4 hours. Another satellite
- Two point charge +9e and +e are at 16 cm away from each other.
- Large transformers, when used for some time, become hot and are cooled by circulating
- The string of a pendulum is horizontal.The mass of bob attached to it is m
- A disc of mass 100 g is kept floating horizontally in air by firing bullets
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A satellite in a circular orbit of radius R has a period of 4 hours. Another satellite
- Two point charge +9e and +e are at 16 cm away from each other.
- Large transformers, when used for some time, become hot and are cooled by circulating
- The string of a pendulum is horizontal.The mass of bob attached to it is m
- A disc of mass 100 g is kept floating horizontally in air by firing bullets
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