Question

Define the terms

(i) time period
(ii) frequency and
(iii) angular frequency.

Answer 1

(1) It's a unit of measurement used to categorize a length of time. Also called timeframe.
(2) Frequency is the number of occurrences of a repeating event per unit time.
(3) Angular frequency is a scalar measure of rotation rate. It refers to the displacement per unit time.

Answer 2

1)Time Period--If ur asking about a pendulum then its a time required by a pendulum to complete one oscillation (in secs)
2)Frequency--It is defined as the number of oscillation per second.
3)Angular frequency--the frequency of a steadily recurring phenomenon expressed in radians per second. A frequency in hertz can be converted to an angular frequency by multiplying it by 2π.