Physics A body absorbs heat most if it is White and smooth Black and smooth White and rough Black and rough White and smooth Black and smooth White and rough Black and rough ANSWER DOWNLOAD EXAMIANS APP
Physics A black body can absorb radiations of : Lower wavelengths only Higher wavelengths only All wavelengths Intermediate wavelengths only Lower wavelengths only Higher wavelengths only All wavelengths Intermediate wavelengths only ANSWER DOWNLOAD EXAMIANS APP
Physics The cover of a solar cooker is made of glass because It reflects sun's rays It absorbs sun's rays It rediates heat better than metals It retains the heat inside by the green house effect It reflects sun's rays It absorbs sun's rays It rediates heat better than metals It retains the heat inside by the green house effect ANSWER DOWNLOAD EXAMIANS APP
Physics The base of an electric iron is brightly polished mainly To make it rust-proof To make it smooth and frictionless To make it more durable To reduce heat loss by radiation To make it rust-proof To make it smooth and frictionless To make it more durable To reduce heat loss by radiation ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The carpet is a better conductor of heat than the stone The floor and carpet are at different temperatures The human body maintains a constant temperature The stone conveys the heat away from the feet more rapidly than the carpet The carpet is a better conductor of heat than the stone The floor and carpet are at different temperatures The human body maintains a constant temperature The stone conveys the heat away from the feet more rapidly than the carpet ANSWER DOWNLOAD EXAMIANS APP
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