Physics Among the following materials sound travels fastest in Air Steel Vacuum Water Air Steel Vacuum Water ANSWER DOWNLOAD EXAMIANS APP
Physics What happens to a liquid, when the vapour pressure equals the atmospheric pressure? The liquid evaporates The liquid cools No change The liquid boils The liquid evaporates The liquid cools No change The liquid boils ANSWER DOWNLOAD EXAMIANS APP
Physics The density of the liquid when heated Does not change Decreases May increase of decrease depending on pressure Increases Does not change Decreases May increase of decrease depending on pressure Increases ANSWER DOWNLOAD EXAMIANS APP
Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 20 cm 15 cm 5 cm 10 cm 20 cm 15 cm 5 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
Physics In radio-communication, the signals emitted by transmitting antenna are reflected on Ionosphere Stratosphere Troposphere Ozonosphere Ionosphere Stratosphere Troposphere Ozonosphere ANSWER DOWNLOAD EXAMIANS APP
Physics A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be : (4/3)f (7/3)f F (3/4)f (4/3)f (7/3)f F (3/4)f ANSWER DOWNLOAD EXAMIANS APP
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