Question

what is a spectrum and how it is formed?????????​

Answer 1

The light waves of different colours vary in their frequency and wavelengths. When a white light is made incident on a glass prism, it undergoes refraction. The prism splits the incident white light into a band of colours. ... This band of the coloured components of a light beam is called its spectrum.

Answer 2

$\huge\star\underline\mathtt\purple{Answer:-}$$<p style="color:pink;font-family:cursive;background:black;font size:25px;"></p><p>A spectrum is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. </p><p>An emission spectrum is the line pattern formed when an element is excited and gives off energy. An absorption spectrum is formed when white light passes through a cool gas. The gas absorbs certain wavelengths of energy and allows others to pass through.$