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A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30 m/s. The frequency of sound heard by listener is (velocity of sound = 300 m/s)
Options
(a) 727.3 Hz
(b) 481.2 Hz
(c) 644.8 Hz
(d) 286.5 Hz
Correct Answer:
727.3 Hz
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
- The speed of light in media M₁ and M₂ are 1.5×10⁸ ms⁻¹ and 2×10⁸ ms⁻¹ respectively.
- A particle moves in xy plane according to the equation x = 4t² + 5t + 16 and y = 5t
- A car moving with a speed of 50 kmh⁻¹ can be stopped by brakes after at least 6 m
- The core of a transformer is laminated because
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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