Waves and Sound AFCAT Questions

AFCAT Physics

Waves and Sound MCQ Questions


7.
The Unpleasant sound is known as
A.
Music
B.
Noise
C.
Energy
D.
Light
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ANSWER :
B. Noise
8.
SONAR Stands For
A.
Sound Navigation And Ranging
B.
Sound Navigation And Reflection
C.
Sound Navigation And Refraction
D.
Sound Nature And Ranging
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ANSWER :
A. Sound Navigation And Ranging
9.
______ is a device that uses ultrasonic waves to measure the distance, direction and speed of underwater objects.
A.
Spectrometer
B.
Light Detector
C.
SONAR
D.
Submarine
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ANSWER :
C. SONAR
10.
The outer ear is known as
A.
Pinna
B.
Anvil
C.
Strirrup
D.
Cochlea
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ANSWER :
A. Pinna
11.
Sound waves with the frequency below the audible range is as
A.
Infrasonic
B.
Ultrasonic
C.
SuperSonic
D.
None of the above
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ANSWER :
A. Infrasonic
12.
Sound waves with the frequency above the audible range is as
A.
Infrasonic
B.
Ultrasonic
C.
SuperSonic
D.
None of the above
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ANSWER :
B. Ultrasonic