⇦ | ⇨ |
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 filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
- A bubble is rising from bottom of a lake. The volume of bubble becomes
- Two wheels having radii in the ratio 1:3 are connected by a common belt
- A block of mass m is moving on a wedge with the acceleration aᵒ
- The binding energy per nucleon of ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06MeV
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
- A bubble is rising from bottom of a lake. The volume of bubble becomes
- Two wheels having radii in the ratio 1:3 are connected by a common belt
- A block of mass m is moving on a wedge with the acceleration aᵒ
- The binding energy per nucleon of ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06MeV
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