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WAEC - Physics (1990 - No. 11)
A simple pendulum makes 50 oscillations in one minute. What is its period of oscillation?
0.02s
0.20s
0.83s
1.20s
50.00s
解释
T =
t
/
no. of oscillation
=
1 x 60
/
50
= 1.2s
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