Question

what is called the light of fixed frequency or wave length​

Answer 1

Answer:

It is denoted by the Greek letter lambda (λ). Therefore, the distance between either one crest or trough of one wave and the next wave is known as wavelength. The wavelength of light is defined as “The distance between the two successive crests or troughs of the light wave”.

Answer 2

Answer:

$\large\mathbb{\underbrace\purple{ANSWER}}$

It is denoted by the Greek letter lambda (λ). Therefore, the distance between either one crest or trough of one wave and the next wave is known as wavelength. The wavelength of light is defined as “The distance between the two successive crests or troughs of the light wave”.

MARK AS BRAINLIEST