Question

unit 7 \physical interaction\ test
the si unit of frequency is the _____.
○ hertz
○ decibel.
○ degree.
○ meter.

Explanation:

The SI unit of frequency is hertz, symbol - Hz. It represents the number of occurrences of a repeating event per unit of time. Decibel is for sound intensity, degree for angles, and meter for length.

Answer:

hertz