When and where does a rainbow appear in the sky ? Draw a labelled ray diagram to show its formation.

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TextDispersion of White Light by PrismBlue Colour of Sky Due to ScatteringCBSE PYQ

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Assertion (A) : The rainbow is a natural spectrum of sunlight in the sky. Reason (R) : Rainbow is formed in the sky when the sun is overhead and water droplets are also present in air.

Assertion-ReasonDispersion of White Light by PrismSpectrum of White Light

The white light entering a glass prism, gets split into its constituent colours. It is observed that :

MCQ (Single)

Dispersion of White Light by Prism

Spectrum of White Light

The phenomena of light involved in the formation of rainbow are :

MCQ (Single)Dispersion of White Light by Prism

The colour of light for which the refractive index of glass is minimum, is :

MCQ (Single)Refractive Index of a MediumDispersion of White Light by Prism

What is dispersion of white light ? State its cause. Draw a diagram to show dispersion of a beam of white light by a glass prism.

TextDispersion of White Light by PrismSpectrum of White Light

When a beam of white light passes through a region having very fine dust particles, the colour of light mainly scattered in that region is :

MCQ (Single)Tyndall EffectBlue Colour of Sky Due to Scattering