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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- As a light wave travels from one medium to another which of its following properties
- 180⁰ phase difference is obtained when light ray is reflected from
- A parallel plate condenser with a dielectric of dielectric constant K between the plates
- If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
- A transistor-oscillator using a resonant circuit with an inductor L
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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