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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 wire of length 2 m is made from 10 cm³ of copper. A force F is applied so that
- According to Hook’s law of elasticity, if stress is increased, the ratio of stress
- If the binding energy of the nucleon in ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06 MeV
- If rope of lift breaks suddenly, the tension exerted by the surface of the lift
- A coil of resistance 20 ohm and inductance 5H is connected with a 100V battery
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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