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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 fluid is in streamline flow across a horizontal pipe of variable area of cross section
- If h is the height of the capillary rise and r be the radius of capillary tube,
- A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- A transistor is working in common emitter mode. Its amplification factor is 80
- Equal charge q each are placed at the vertices AQ and B of an equilateral triangle
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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