Question

What is the unit used to measure period called?

Answer 1

Hint: In the above question we are asked to determine the unit of the period. The unit is the smallest measurement we can make of the particular physical quantity considering the natural numbers only. Period is nothing but the time elapsed or covered. Hence knowing how time is measured we can determine the unit of period.

Complete step-by-step solution:
The term period refers to the time taken by a particle exhibiting wave-like character, to complete one cycle or oscillation with respect to mean position. Period being a time, is measured in the units of time. The SI unit of time is seconds. Hence usually the period is measured in the nit of seconds.
Additional information:
The term period actually got popularized from the oscillation of a simple harmonic oscillator. The term period is used for the time taken for oscillatory motion as well as the rotational motion of a body. In case of oscillatory motion, the body moves two and fro with respect to a mean position. Whereas in case of rotational motion, the particle or a body moves in a circle of the same radius at any instant of time. Usually the period of the bodies undergoing the oscillatory and circular motion does not change with time.

Note: Time is measured in seconds, minutes as well as in hours. Hence it is to be noted that the period can always be measured in any units but as that which we use to measure time. It is also to be noted that time is relative and hence its meaning can change from place to place as well as if we change the reference of time.