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Subjects
Science State Board
Class 8
Sound
Properties of sound and types of musical instruments
12.
Nature and types of sound
Exercise condition:
4
m.
Choose the correct answer
:
1
.
Bats
can hear __________ sound
Infrasound
Ultrasound
.
2
.
Loudness of a sound is determined by its__________
Frequency
Amplitude
.
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