| ⇦ | 
| ⇨ |
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.
Related Questions: - An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
- A stone of mass 1 kg tied to a light inexensible string of length L=10/3 is whirling
- A light of wavelength 5000Å falls on a sensitive plate with photoelectric work
- A bullet loses 1/20 of its velocity after penetrating a plank.How many planks
- When sound is produced in an aeroplane with a velocity of 200 m/s horizontally,
Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
- A stone of mass 1 kg tied to a light inexensible string of length L=10/3 is whirling
- A light of wavelength 5000Å falls on a sensitive plate with photoelectric work
- A bullet loses 1/20 of its velocity after penetrating a plank.How many planks
- When sound is produced in an aeroplane with a velocity of 200 m/s horizontally,
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply