| ⇦ | 
| ⇨ |
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 person has a minimum distance of distinct vision as 50 cm. The power of lenses
- The distance of the moon form the earth is 3.8×10⁵ km. Supposing that the eye
- A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor.
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- The value of Planck’s constant is
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A person has a minimum distance of distinct vision as 50 cm. The power of lenses
- The distance of the moon form the earth is 3.8×10⁵ km. Supposing that the eye
- A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor.
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- The value of Planck’s constant 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