Waves and Sound AFCAT Questions

AFCAT Physics

Waves and Sound MCQ Questions


1.
The back and forth motion of an object is called ______
A.
Vibration
B.
Translation
C.
Linear motion
D.
Rotation
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ANSWER :
A. Vibration
2.
The number of oscillations per second is called as _______
A.
Time Period
B.
Speed
C.
Frequency
D.
Amplitude
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ANSWER :
C. Frequency
3.
The frequency is expressed in______
A.
Degree
B.
Gram
C.
Kilogram
D.
Hertz
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ANSWER :
D. Hertz
4.
The audible range of sound in human beings_______
A.
20Hz to 2000Hz
B.
200Hz to 2000Hz
C.
2Hz to 2000Hz
D.
20Hz to 20,000Hz
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ANSWER :
D. 20Hz to 20,000Hz
5.
In humans, the sound produced by a voice box is known as
A.
Larynx
B.
Tongue
C.
Epiglottis
D.
Trachea
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ANSWER :
A. Larynx
6.
_________ determines the pitch of a sound
A.
Velocity
B.
Source
C.
Frequency
D.
Amplitude
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ANSWER :
C. Frequency