1.

Match the laws given in Column I to the respective correct statement given in Column II. {:("Column I","Column II"),((a)"Wien's displacement law explains" ,(p) "why days are hot and nights are cold in deserts"),((b) "Planck's law explains",(q) "why a blackened platinum wire, when gradually heated, appears first dull red and then blue"),((c ) "Kirchhoff's law explains",(r ) "the distribution of energy in blackbody spectrum at shorter as well as longer wavelengths"),((d ) "Newton's law of cooling explains that ",(s ) "the rate of cooling of body is proportional to the excess temperature of the body over the surroundings"):}

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ANSWER :A::B::C::D


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