A police car, with its siren on, is moving towards a stationary listener. How does the stationary listener receive the frequency of the sound emitted by the siren? It
Answer: Increases
Explanation
When a police car with its siren on moves towards a stationary listener, the frequency of the sound perceived by the listener increases.
This phenomenon is known as the Doppler effect.
This question appeared in
Past Papers (1 times)
MDCAT Past Papers and Syllabus (1 times)
This question appeared in
Subjects (2 times)
EVERYDAY SCIENCE (2 times)
Related MCQs
- If Bilal moves, with a speed equal to 0.5 that of sound, away from a stationary organ producing a sound of frequency 'f', he would probably hear a sound of frequency
- Select the appropriate Doppler equation when source is approaching the stationary observer where fo is the observed frequency, fs is frequency of source, v is the speed of sound, vs is the speed of source relative to observer?
- On hearing the siren, I pulled ______ and stopped the car.
- One projectile moving with velocity V in space gets burst into 2 parts of masses in the ratio 1:3. The smaller part becomes stationary. What is the velocity of the other part?
- ____ is the study of meaning as communicated by a speaker and interpreted by a listener?
- Sentence completions : To many candid revelations can __ make the listener feel that something is amiss, and may lead to accusations of ___ .
- A car is moving at 20ms-¹ along a straight road and sounds its horn at 500 Hz. What frequency do you hear aa the car is approaching you? (Use speed of sound = 340ms-¹)
- Trust worthy and a good listener, confident and competent, inspirational, motivated, coach and counsellor are all the qualities of _____?
- Which one of the following does not cause stationary waves?
- Change the narration. He said, ”The sun is stationary”.
