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PDF chapter test
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Subjects
Science CBSE
Class 8
Sound
Sound production and pollution
10.
Musical instruments
Exercise condition:
4
m.
Drag the correct answer
:
Answer variants:
metal
stretched membrane
air column
Strings
1
. The
of
khanjiri
vibrates and produces sound.
2
. The
parts of
school bell
vibrates and produces sound.
3
. The
of
guitar
vibrates and produces sound.
4
. The
of
flute
vibrates and produces sound.
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