Physics Heat from the Sun reaches the Earth by Convection Conduction Reflection Radiation Convection Conduction Reflection Radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Superconductors are those elements Which turn into insulators at very low temperatures Whose resistance falls almost to zero at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators Which turn into insulators at very low temperatures Whose resistance falls almost to zero at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators ANSWER DOWNLOAD EXAMIANS APP
Physics A barometer is kept inside a bell jar. Air is slowly pumped out of the jar. The bell jar breaks up The mercury level starts falling The mercury level does not change The mercury level starts rising The bell jar breaks up The mercury level starts falling The mercury level does not change The mercury level starts rising ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following criterion is used for any metal to be used as a cooking material ? More specific heat More thermal conductivity Less thermal conductivity Less electrical conductivity More specific heat More thermal conductivity Less thermal conductivity Less electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Physics A hunter on the ground wishes to shoot a bird on a tree at a distance with his rifle. He has to point the rifle In the same direction as the bird At a higher elevation than the bird Vertically upwards At the lower elevation than the bird In the same direction as the bird At a higher elevation than the bird Vertically upwards At the lower elevation than the bird ANSWER DOWNLOAD EXAMIANS APP
Physics One watt-hour is equivalent to 3.6 x 10-3 J 6.3 x 103 J 6.3 x 10-7 J 3.6 x 103 J 3.6 x 10-3 J 6.3 x 103 J 6.3 x 10-7 J 3.6 x 103 J ANSWER DOWNLOAD EXAMIANS APP
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