An electric razor in Europe completes 50 vibrations in 1 s. The frequency of these vibrations is
A) 50 Hz with a period of 1/50 s.
B) 1/50 Hz with a period of 50 s.
C) 50 Hz with a period of 50 s.
D) 1/50 Hz with a period of 1/50 s.
Answer: A
Physics & Space Science
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