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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
- Dimensions [ML⁻¹T⁻¹] are related with
- Two charges of equal magnitude q are placed in air at a distance 2a
- When npn transistor is used as an amplifier
- A rectangular copper coil is placed in a uniform magnetic field of induction 40 mT
- If force is proportional to square of velocity, then the dimension of proportionality
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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