Question #d9257

1 Answer
Sep 7, 2017

Frequency is not the same as wavelength.

Frequency is defined as the number of wave-cycles taking place in unit time.

Wavelength is defined as the distance travelled by the wave in one complete wave-cycle. Or it may be alternatively defined as, distance between to consecutive crests or troughs in a wave.

They are two different things. But are related as,

#nulamda = v# where,

#nu# is the frequency, #lamda# is the wavelength, and #v# is velocity of the wave.

Thus as wavelength is increased, frequency decreases and vice versa (for a given wave with #v# constant).