What is spectrum?

(a) What is spectrum ? What is the name of glass shape used to produce a spectrum ? (b) How many colours are there in a full spectrum of white light ? Write the various colours of spectrum in the order, starting with red.

What is a spectrum?

What is a spectrum ?

What is a spectrum of light ?

What is H-spectrum ?

What is a spectrum ? Why do we get a spectrum of seven when while light is dispersed by a prism ? OR Explain how a spectrum is formed.

Answer the following questions What is a spectrum ? why do we get a spectrum of seven colours when while light is dispersed by a prism ?