5.
If an object oscillates 20 times in 5 s
then its period is :
A) 0.25 s.
B) 4
C) 15 s
D) 5s
Answers
Answered by
2
Explanation:
Given: No. of oscillations =20
Time taken =5 sec
By using the formula:
Frequency=
Time taken
No of oscillations
=
5
20
=4 Hz
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