Home Physics Ray Optics Prism Theory & Dispersion of Light At sun rise or sunset, the sun looks more re…
Physics Ray Optics Prism Theory & Dispersion of Light MCQ (Single Correct)

At sun rise or sunset, the sun looks more red than at mid-day because

A
The sun is hottest at these times
B
Of the scattering of light
C
Of the effects of refraction
D
Of the effects of diffraction

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The correct answer is:
B

According to Rayleigh’s law of scattering, intensity scattered is inversely proportional to the forth power of wavelength. So red is least scattered and sun appears Red.

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