The frequency of an electric razor in Europe that completes 50 vibrations in 1 s has a frequency of

A. 50 Hz with a period of 1/50 s.
B. 50 Hz with a period of 50 s.
C. 1/50 Hz with a period of 50 s.
D. 1/50 Hz with a period of 1/50 s.


Answer: A

Environmental & Atmospheric Sciences

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