Physics In a Cinema hall, the distance between the projector and the screen is increased by 2%. Then the intensity of illumination on the screen is Increased by 2% Increased by 4% Decreased by 4% Decreased by 2% Increased by 2% Increased by 4% Decreased by 4% Decreased by 2% ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of sound is the greatest in : Glycerine Water Glass Air Glycerine Water Glass Air ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in moist air is more than in dry air because the moist air has More pressure than dry air. Less pressure than dry air. Less density than dry air. More density than dry air. More pressure than dry air. Less pressure than dry air. Less density than dry air. More density than dry air. ANSWER DOWNLOAD EXAMIANS APP
Physics Speed in a given direction is called Displacement Acceleration Torque Velocity Displacement Acceleration Torque Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity required to place a vehicle in orbit around the moon is ________ that required to place it in orbit round the earth. Greater than Equal to Greater than or equal to Less than Greater than Equal to Greater than or equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Physics A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be A vertical straight line A horizontal straight line A parabola A circle A vertical straight line A horizontal straight line A parabola A circle ANSWER DOWNLOAD EXAMIANS APP
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