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Subjects
Science State Board
Class 9
Sound
Types, properties and applications of sound
2.
Properties of a sound in terms of amplitude and frequency
Exercise condition:
3
m.
Choose
the correct answer
:
1
.
The shrillness of a sound is determined by its
Time period
Frequency
Vibration
Amplitude
2
.
The number of vibrations made by a vibrating body in one second is
Time period
Frequency
Amplitude
Speed
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