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An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz. Speed of sound in air=350 ms⁻¹. The frequency of the note after reflection from the wall as heard by the driver of the engine is
Options
(a) 2.4 kHz
(b) 0.24 kHz
(c) 1.6 kHz
(d) 1.2 kHz
Correct Answer:
1.6 kHz
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 particle with charge q is moving along a circle of radius R with unoform speed v.
- The r.m.s speed of the molecules of a gas in a vessel is 400 m/s
- The distance of a geo-stationary satellite from the centre of the earth is nearest to
- A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string
- The number of beta particles emitted by a radioactive substance is twice the number
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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