Physics The earth is a Non-absorber of heat Good absorber and good radiator of heat Good reflector of heat Bad absorber and bad radiator of heat Non-absorber of heat Good absorber and good radiator of heat Good reflector of heat Bad absorber and bad radiator of heat 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 higher thermal conductivity than metals metals are good conductor of heat plastics have a lower density than metals metals have higher thermal capacity than plastics plastics have a higher thermal conductivity than metals metals are good conductor of heat plastics have a lower density than metals ANSWER DOWNLOAD EXAMIANS APP
Physics Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is known as Peltier effect Thomson effect Joule effect Seebeck effect Peltier effect Thomson effect Joule effect Seebeck effect ANSWER DOWNLOAD EXAMIANS APP
Physics A gas thermometer is more sensitive than a liquid thermometer because a gas : Does not change state easily Is lighter than liquid Expands more than a liquid Is easy to obtain Does not change state easily Is lighter than liquid Expands more than a liquid Is easy to obtain ANSWER DOWNLOAD EXAMIANS APP
Physics According to special theory of relativity the mass of a particle Decreases with decrease in velocity. Is independent of its velocity. Increases with increase in velocity with respect to an observer. Decreases with increase in velocity. Decreases with decrease in velocity. Is independent of its velocity. Increases with increase in velocity with respect to an observer. Decreases with increase in velocity. ANSWER DOWNLOAD EXAMIANS APP
Physics If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be equal to ________. 0.3 m 300 m 30 m 3 m 0.3 m 300 m 30 m 3 m ANSWER DOWNLOAD EXAMIANS APP
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