Physics In the atmosphere ultraviolet rays are absorbed by Ozone Oxygen Helium Nitrogen Ozone Oxygen Helium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning heats the surrounding air to 300000 deg Cent 300 deg Cent 3000 deg Cent 30000 deg Cent 300000 deg Cent 300 deg Cent 3000 deg Cent 30000 deg Cent ANSWER DOWNLOAD EXAMIANS APP
Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Conduction and radiation only Conduction and convection only Convection and radiation only Conduction, convection and radiation Conduction and radiation only Conduction and convection only Convection and radiation only Conduction, convection and radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are used to protect magnets from : Earth's magnetic field Effect of other magnets Demagnetization due to heating Self-demagnetization Earth's magnetic field Effect of other magnets Demagnetization due to heating Self-demagnetization ANSWER DOWNLOAD EXAMIANS APP
Physics A liquid disturbed by stirring comes to rest due to Density Viscosity Surface tension Centripetal force Density Viscosity Surface tension Centripetal force ANSWER DOWNLOAD EXAMIANS APP
Physics The apparent weight of a man in a lift is less the real weight when : The lift is going down with an acceleration The lift is going up with an acceleration The lift is going down with uniform speed The lift is going up with uniform speed The lift is going down with an acceleration The lift is going up with an acceleration The lift is going down with uniform speed The lift is going up with uniform speed ANSWER DOWNLOAD EXAMIANS APP
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