1 hertz is equal to (a) 1 vibration per minute (b) 10 vibrations per minute (c) 60 vibrations per minute (d) 600 vibrations per minute

Answer: (c) 60 vibrations per minute

Hertz is the unit for frequency. Frequency is the number of cycles undergone during one unit of a time by a body in periodic motion.

The SI unit of frequency is hertz (Hz). The term has been kept in honour of popular German physicist Heinrich Hertz. Generally, when we say one hertz it means that an event reoccurs once per second.

1 hertz is =  1 vibration per second

So 1 hertz is = 60 vibrations per minute

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