Question

27. What do you mean by amplitude ?
28. What do you mean by subsonic frequency?
29. What do you mean by electroplating ?
30.Write down the two secondary sexual characters of male.​

Answer 1

Answer:

Ans 27: = The amplitude of a periodic variable is a measure of its change in a single period. There are various definition of amplitude, which are all functions of the magnitude of the differences between the variable's extreme values. In order texts, the phase of a period function is sometimes called amplitude.