Tag: natural phenomena explained by scattering

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Multiple choice physics effects of light scattering of light and its applications some natural phenomena of light natural phenomena explained by scattering

Rising and setting sun appears to be reddish because:

  1. The sun is colder at sunrise or at sunset

  2. Diffraction sends red rays to the earth at these times

  3. Refraction is responsible for it

  4. Scattering due to dust particles and air molecules is responsible for it
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

According to Rayleigh's law of scattering, amount of scattering $\alpha \frac {1}{\lambda^4}$.
Red having maximum wavelength straight to the observer.
Most of the scattered light goes towards the sky, so the sky appears blue.

Multiple choice physics effects of light scattering of light and its applications some natural phenomena of light natural phenomena explained by scattering

The process of re-emission of absorbed light in all directions with different intensities by the atom or molecule is called ____________.

  1. Scattering of light

  2. Dispersion of light

  3. Reflection of light

  4. Refraction of light
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$Scattering$ is the process of absorbed light in all possible directions with different intensities and frequency by an atom or a molecule.


Answer-(A)