| ⇦ | 
| ⇨ |
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 spring balance is attached to the ceiling of a lift.A man hangs his bag on the spring
- The slope of the graph showing the variation of potential difference V on X-axis
- The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
- A 70 kg man stands in contact against the inner wall of a hollow cylindrical drum
- The unit of reactance is
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A spring balance is attached to the ceiling of a lift.A man hangs his bag on the spring
- The slope of the graph showing the variation of potential difference V on X-axis
- The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
- A 70 kg man stands in contact against the inner wall of a hollow cylindrical drum
- The unit of reactance is
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