Question

The unit used to measure period is the ____

A. hertz
B. second
c. meter
D. millimeter

Answer 1

b

Step-by-step explanation:

ape x

Answer 2

Answer is B.

Step-by-step explanation:

Period is duration of time.

Period can be of a second,minute,hour or of Some years.We will give unit according to the duration of time.In the given options second is most obvious because it is used to measure time.