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A source of sound of frequency 256 Hz is moving rapidly towards a wall with a velocity of 5 m/s. The speed of sound is 300 m/s. If the observer is between the wall and the source, then beats per second heard will be
Options
(a) 7.8 Hz
(b) 7.7 Hz
(c) 3.9 Hz
(d) Zero
Correct Answer:
7.8 Hz
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A total charge of 5µC is distributed uniformly on the surface of the thin walled
- A liquid boils when its vapour pressure equals
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
- An α-particle and a proton travel with the same velocity in a magnetic field
- Find the maximum velocity with which a train can be moved on a circular track
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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