Question

define frequency and wave length

Answer 1

Frequency:

"Frequency id defined as the number of waves that pass a point in space each second." In electronics frequency is the number of cycles of a repetitive wave that occurs in a given time period. The unit of frequency is hertz, named for the German physicist Heinrich Hertz.

Frequency = Speed of Light / Wavelength

Wavelength:

"The wavelength is defied as the distance between two repeating points on a sine wave." The types of wave is not important as this is the same for all waves, square, triangle and so on.

Wavelength = Speed of Light / Frequency

Answer 2

◼FREQUENCY :-

=>It is defined as the number of waves passing through a point in one second.

=> It is represented by v(nu)

=> It is expressed in Hertz(Hz) or cycles /sec or simply sec^ -1


◼WAVE LENGTH:-


=>The distance between nearest crests or trough .
OR
=> It is defined as the distance between any two consecutive crests or troughs.

=> It is represented by lambda .

=> It is expressed in A° or m or cm or nm(nanometre) or pm ( picometer).