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