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, convection and radiation Conduction and convection only Convection and radiation only Conduction and radiation only Conduction, convection and radiation Conduction and convection only Convection and radiation only ANSWER DOWNLOAD EXAMIANS APP
Physics Energy in reflected light : Does not depends on the angle of incidence Increases with the increase in angle Decreases with the increase in angle of incidence Becomes maximum for angle of incidence equal to 45° Does not depends on the angle of incidence Increases with the increase in angle Decreases with the increase in angle of incidence Becomes maximum for angle of incidence equal to 45° ANSWER DOWNLOAD EXAMIANS APP
Physics When a bullet is fired from a gun The gun jumps up The gun recoils with the same momentum as the bullet The gun does not move The gun moves forward The gun jumps up The gun recoils with the same momentum as the bullet The gun does not move The gun moves forward ANSWER DOWNLOAD EXAMIANS APP
Physics For an ideal gas, which one of the following statements does not hold true? The potential energy of the gas molecules is zero There is no interactive force between the molecules. The speed of all gas molecules is same The kinetic energies of all gas molecules are not same The potential energy of the gas molecules is zero There is no interactive force between the molecules. The speed of all gas molecules is same The kinetic energies of all gas molecules are not same ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of sound in air is unaffected by change in Temperature Humidity Pressure Volume Temperature Humidity Pressure Volume ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following never occurs singly in nature? Velocity Inertia Momentum Force Velocity Inertia Momentum Force ANSWER DOWNLOAD EXAMIANS APP
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