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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
- The angle of a prism is A. One of its refracting surfaces is silvered
- Three fourth of the active material decays in a radioactive sample in 3/4 sec
- A spring of spring constant 5 x 10³ Nm⁻¹ is streched intially by 5 cm from
- Two point objects of masses 1.5 g and 2.5 g respectively are at a distance of 16 cm
- If the band gap between valence band and conduction band in a material is 5.0 eV,
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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