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A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30 m/s. The frequency of sound heard by listener is (velocity of sound = 300 m/s)
Options
(a) 727.3 Hz
(b) 481.2 Hz
(c) 644.8 Hz
(d) 286.5 Hz
Correct Answer:
727.3 Hz
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a circuit, the current lags behind the voltage by a phase difference of π/2.
- A 5 watt source emits monochromatic light of wavelength 5000Å. When placed
- A body takes 5 minute for cooling from 50⁰C to 40⁰C. Its temperature
- Two cars A and B moving with same speed of 45 km/hr along same direction.
- Three masses are placed on the x-axis : 300 g at origin, 500 g at x = 40 cm
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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