Question

What is dispersion of ligh

Answer 1

Dispersion of Light:

• It is a phenomenon observed when a polychromatic white light undergoes refraction at an interface.

• The components of the polychromatic light undergoes differential deviation during refraction.

• This results in splitting into its monochromatic components.

"Dispersion is a condition of splitting of white light (polychromatic) into its monochromatic components while undergoing refraction at an interface"

Diagram:

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• Lets take a example: When white light is made incident on one face of a glass prism, the various components of the white light deviate by different amounts resulting in formation of a spectrum of colours.

• This is dispersion.

• The amount of deviation depends inversely on the wavelength of the component , hence violet colour experiences highest deviation and red colour experiences least deviation.

$\star$ Hope It Helps.

Answer 2

Dispersion of light can be explained as below:

• When white light is incident on a prism, the different colors get deviated through different angles. Violet color has the maximum deviation while red suffers the least deviation.
• This separation of light into its constituent colors is termed as dispersion.
• The band of colors obtained when white light undergoes dispersion is violet, indigo, blue, green, yellow, orange, and red. (VIBGYOR)