Physics Sun's heat reaches us by Reflection Radiation Conduction Convection Reflection Radiation Conduction Convection ANSWER DOWNLOAD EXAMIANS APP
Physics A car accelerates uniformly from 18 kmph to 72 kmph in 5 s. The acceleration of the car (in m/s2) is: 5 3 6 7 5 3 6 7 ANSWER DOWNLOAD EXAMIANS APP
Physics Conversion of sound energy into electrical energy is done by Solar cell Microphone Gramophone Loudspeaker Solar cell Microphone Gramophone Loudspeaker ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because metals have higher thermal capacity than plastics plastics have a lower density than metals metals are good conductor of heat plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics plastics have a lower density than metals metals are good conductor of heat plastics have a higher thermal conductivity than metals ANSWER DOWNLOAD EXAMIANS APP
Physics In a Carnot engine when heat is taken from the source, its temperature Remains constant Increases Decreases Decreases and then remains constant Remains constant Increases Decreases Decreases and then remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics When a barometer reading suddenly recedes, it indicates that climate– Will be extremely stormy Will remain cold Will be very warm Incessant rain for at least 48 Will be extremely stormy Will remain cold Will be very warm Incessant rain for at least 48 ANSWER DOWNLOAD EXAMIANS APP
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