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Oscillations and Waves-Doppler Effect in Sound [AIIMS (All India Institute of Medical Sciences) Physics]: Questions 1 - 4 of 5
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Question 1
Question MCQ▾
A vehicle, with a horn of frequency is moving with a velocity of in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency . Then –
(Take velocity of sound in air 300 m/s)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 2
Appeared in Year: 2002
Question MCQ▾
A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of . Frequency of sound to be heard by the listener is (Velocity of sound )
Choices
Choice (4) | Response | |
---|---|---|
a. | 286.5 Hz | |
b. | 644.8 Hz | |
c. | 733.3 Hz | |
d. | 481.2 Hz |
Question 3
Appeared in Year: 1999
Question MCQ▾
A siren emitting sound of frequency 500 Hz is going away form a static listener with a speed of . The frequency of sound to be heard directly from the siren is –
Choices
Choice (4) | Response | |
---|---|---|
a. | 256.5 Hz | |
b. | 589.3 Hz | |
c. | 434.2 Hz | |
d. | 484.2 Hz |
Question 4
Question MCQ▾
A vehicle, with a horn of frequency is moving with a velocity of in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency . Then – (Take velocity of sound in air 300 m/s)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |