Question

When do you get rainbow?
Why do rainbow occurs?
Where have you seen a similar
spread of colours?
State the laws of reflection.

Answer 1

1. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.

2. A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc.

3. No I have not seen it.

4.A rainbow is formed when light (generally sunlight) passes through water droplets hanging in the atmosphere.

Explanation:

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Answer 2

Answer:

On a rainy day we can see a rainbow . Rainbow occurs when the white light of sun passes through rainwater droplets,the white light of sun scatters into its component colours thus leading to formation of a rainbow.

It's component colours are -

Violet

Indigo

Blue

Green

Yellow

Orange

Red

We see the similar kind of spread of colours when sunlight passes through a prism.

Laws of reflection -

The incident ray, normal and reflected ray all lie in the same plane.

Angle of incidence is equal to angle of reflection.

Explanation: