Question

what is mean by scattering of light?

Answer 1

When energy waves (such as light, sound, and various electromagnetic waves) are caused to depart from a straight path due to imperfections in the medium, it is called scattering. Scattering is unique in that the wave energy is generally deflected in multiple directions that are difficult to predict or calculate. A great example of basic scattering is to think of the Sun shining on you through a thin cover of clouds. Instead of hitting you directly, the Sun's light is weakened. This is because as the Sun shines through the clouds, its light is scattered and only some of it ends up striking you.

Of course, scattering is not limited to light. Scattering can happen to many types of energy waves and is more pronounced in certain media.

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Twin Sises

Answer 2

When white light / sunlight is passed through a prism it scatters into its 7 substituent colours . This is known as scattering of light .

The seven substituent colours are VIBGYOR :-

• Violet
• Indigo
• Blue
• Green
• Yellow
• Orange
• Red

This happens due to the difference in wave lengths of the 7 substituent colours .

Due to difference in wavelength of different colours , they refract differently.

Red refracts the Least and Violet refracts the Most .

It was discovered by Sir Chandrasekhara Venkata Raman in 1928.

The most significant way of scattering of light we have seen in daily life is Rainbow.

Rainbow is formed by scattering of sunlight by the rain drops.