Physics A body absorbs heat most if it is White and smooth Black and rough White and rough Black and smooth White and smooth Black and rough White and rough Black and smooth ANSWER DOWNLOAD EXAMIANS APP
Physics A black body can absorb radiations of : Higher wavelengths only All wavelengths Lower wavelengths only Intermediate wavelengths only Higher wavelengths only All wavelengths Lower wavelengths only Intermediate wavelengths only ANSWER DOWNLOAD EXAMIANS APP
Physics The cover of a solar cooker is made of glass because It absorbs sun's rays It reflects sun's rays It retains the heat inside by the green house effect It rediates heat better than metals It absorbs sun's rays It reflects sun's rays It retains the heat inside by the green house effect It rediates heat better than metals 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 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 The carpet is a better conductor of heat than the stone ANSWER DOWNLOAD EXAMIANS APP
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