Physics
When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is

Dispersion of light
Refraction of light
Reflection of light
Scattering of light

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Physics
A white and smooth surface is

Good absorber and bad reflector of heat
Good absorber and good reflector of heat
Bad absorber and bad reflector of heat
Bad absorber and good reflector of heat

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Physics
Which of the following occurred first ?

Wright Brothers successfully flew an aircraft
Guglielmo Marconi sent out the first wireless signals
Albert Einstein propounded the General Theory of Relativity
Max Planck unveiled the Quantum Theory

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