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Subjects
Science CBSE
Class 8
Sound
Sound production and pollution
8.
Numerical based on frequency
Exercise condition:
4
m.
1
. A Pendulum oscillates
68
times in
45
\(seconds\). Find its frequency.
Answer
:
The frequency of the pendulum is
\(Hz\)
(
Answer should be in a maximum of two decimals
)
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