Physics
WAEC 2025
An alternating voltage with a frequency of 50 Hz has a period of
-
A.
0.02 s
-
B.
0.20 s
-
C.
0.05 s
-
D.
0.50 s
Correct Answer: Option A
Explanation
The period of a wave is the reciprocal of its frequency.
Therefore, period = \(\frac{1}{\text{frequency}}\)
Substituting the given frequency,
we get period = \(\frac{1}{ 50}\) Hz = 0.02 s.
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