| ⇦ | 
| ⇨ |
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: - The most important characteristic of electron in the production of X-rays is
- An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
- A particle has initial velocity(3i⃗ +4j⃗)and has acceleration (0.4i⃗ +0.3j⃗)
- In a photoelectric effect experiment, the slope of the graph between the stopping
- Two planets at mean distances d₁ and d₂ from the sun have their frequencies n₁ and n₂
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The most important characteristic of electron in the production of X-rays is
- An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
- A particle has initial velocity(3i⃗ +4j⃗)and has acceleration (0.4i⃗ +0.3j⃗)
- In a photoelectric effect experiment, the slope of the graph between the stopping
- Two planets at mean distances d₁ and d₂ from the sun have their frequencies n₁ and n₂
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