Physics The atmospheric layer reflecting radio waves is called Ionosphere Stratosphere Mesosphere Ozonosphere Ionosphere Stratosphere Mesosphere Ozonosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Out of the following, which is not emitted by radioactive substance? Neutrons Electrons Electromagnetic radiations Alpha particles Neutrons Electrons Electromagnetic radiations Alpha particles ANSWER DOWNLOAD EXAMIANS APP
Physics If the phase difference between two points is 120° for a wave with velocity of 360 m/s and frequency 500 Hz, then path difference between the two points is 24 cm 1 cm 6 cm 12 cm 24 cm 1 cm 6 cm 12 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Energy in reflected light : 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° Does not depends on the angle of incidence Increases with the increase in angle Decreases with the increase in angle of incidence ANSWER DOWNLOAD EXAMIANS APP
Physics A body absorbs heat most if it is White and rough Black and smooth Black and rough White and smooth White and rough Black and smooth Black and rough White and smooth ANSWER DOWNLOAD EXAMIANS APP
Physics Heat from the sun reaches earth by the process of Convection Radiation Conduction All of these Convection Radiation Conduction All of these ANSWER DOWNLOAD EXAMIANS APP
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