Physics
A white and smooth surface is

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

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Physics
Which of the following occurred first ?

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

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