Question

define dispersion of light. what is spectrum ​

Answer 1

Answer:

Splitting of white light

Splitting of white lightThe splitting up of white light into its constituent colours is called dispersion. ... With the help of a narrow beam of light, glass prism and arrangement of lenses it is possible to produce the band of seven colours using white light. This band is called spectrum.

Answer 2

• Dispersion is the breaking of visible light into its component colours. Dispersion of light is caused by a variable amount of change in the speed of light rays (resulting in angle of deviation) for each wavelength.
• White light has seven visible colours (VIBGYOR), but black (or dark) denotes the absence of light rays.
• A spectrum (plural spectra or spectrums)[1] is a situation that may fluctuate over a continuum without gaps and is not confined to a set of values.
• The term was initially used in optics to describe the rainbow of colours created by visible light passing through a prism.
• As science gained a better grasp of light, it began to apply to the full electromagnetic spectrum.