Physics Radio waves sent out by a radio stations are reflected by Ionosphere Stratosphere Troposphere Mesosphere Ionosphere Stratosphere Troposphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Physics The wall of a dam is broader at the base To withstand pressure that increases with depth To withstand pressure that is increased with atmospheric pressure Because streamlining is required To withstand pressure that increases in a horizontal plane To withstand pressure that increases with depth To withstand pressure that is increased with atmospheric pressure Because streamlining is required To withstand pressure that increases in a horizontal plane ANSWER DOWNLOAD EXAMIANS APP
Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 15 cm 5 cm 10 cm 20 cm 15 cm 5 cm 10 cm 20 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Rain drops fall from great height. Which among the following statements is true regarding it? They fall with that ultimate velocity, which are different for different droplets Their velocity increases and they fall with same velocity on the earth Their velocity increases and they fall with different velocity on the earth They fall with same ultimate velocity They fall with that ultimate velocity, which are different for different droplets Their velocity increases and they fall with same velocity on the earth Their velocity increases and they fall with different velocity on the earth They fall with same ultimate velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these is not a simple machine? A ramp The pulley A lever A pair of scissors A ramp The pulley A lever A pair of scissors ANSWER DOWNLOAD EXAMIANS APP
Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because The carpet is a better conductor of heat than the stone The human body maintains a constant temperature The stone conveys the heat away from the feet more rapidly than the carpet The floor and carpet are at different temperatures The carpet is a better conductor of heat than the stone The human body maintains a constant temperature The stone conveys the heat away from the feet more rapidly than the carpet The floor and carpet are at different temperatures ANSWER DOWNLOAD EXAMIANS APP
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