Physics When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: Double Remain same Three times Four times Double Remain same Three times Four times ANSWER DOWNLOAD EXAMIANS APP
Physics The group of solar cells joined together in a definite pattern is called a Battery Solar cell panel Solar heater Solar cooker Battery Solar cell panel Solar heater Solar cooker ANSWER DOWNLOAD EXAMIANS APP
Physics Copper wires are generally used for electrical power transmission instead of iron wire because : Copper is a better conductor of electricity than iron Copper can take higher power than iron Copper is lighter than iron Copper is cheaper than iron Copper is a better conductor of electricity than iron Copper can take higher power than iron Copper is lighter than iron Copper is cheaper than iron ANSWER DOWNLOAD EXAMIANS APP
Physics Energy in reflected light : Increases with the increase in angle Does not depends on the angle of incidence Becomes maximum for angle of incidence equal to 45° Decreases with the increase in angle of incidence Increases with the increase in angle Does not depends on the angle of incidence Becomes maximum for angle of incidence equal to 45° Decreases with the increase in angle of incidence ANSWER DOWNLOAD EXAMIANS APP
Physics Mud houses are cooler in summers and warmer in winters as compared to brick houses because Mud is a bad conductor Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters Mud is a poor insulator Mud is a good conductor Mud is a bad conductor Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters Mud is a poor insulator Mud is a good conductor ANSWER DOWNLOAD EXAMIANS APP
Physics The earth is a Non-absorber of heat Good absorber and good radiator of heat Bad absorber and bad radiator of heat Good reflector of heat Non-absorber of heat Good absorber and good radiator of heat Bad absorber and bad radiator of heat Good reflector of heat ANSWER DOWNLOAD EXAMIANS APP
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