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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 soap bubble oscillates with time period T, which in turn depends on the pressure
- A body undergoes no change in volume. Poisson’s ratio is
- If h is the height of the capillary rise and r be the radius of capillary tube,
- A step-down transformer has 50 turns on secondary and 1000 turns on primary winding.
- If the band gap between valence band and conduction band in a material is 5.0 eV,
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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