Physics Bats can sense obstacles because they produce Ultrasonic sound waves Micro sound waves Infrasonic sound waves Supersonic sound waves Ultrasonic sound waves Micro sound waves Infrasonic sound waves Supersonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics Energy in reflected light : Becomes maximum for angle of incidence equal to 45° Increases with the increase in angle Decreases with the increase in angle of incidence Does not depends on the angle of incidence Becomes maximum for angle of incidence equal to 45° Increases with the increase in angle Decreases with the increase in angle of incidence Does not depends on the angle of incidence ANSWER DOWNLOAD EXAMIANS APP
Physics The swing of a spinning cricket ball in air can be explained on the basis of Turbulence caused by wind. Buoyancy of air. Sudden change in wind direction. Bernoulli's theorem. Turbulence caused by wind. Buoyancy of air. Sudden change in wind direction. Bernoulli's theorem. ANSWER DOWNLOAD EXAMIANS APP
Physics A bullet of mass 10gm is fired with a velocity of 40 m/s from a gun of mass 8 kg. Find the recoil velocity (in m/s) of the gun. 4 0.1 2 0.05 4 0.1 2 0.05 ANSWER DOWNLOAD EXAMIANS APP
Physics A dynamo is a device which Converts mechanical energy into electrical energy Converts electrical energy into mechanical energy Creates mechanical energy Creates electrical energy Converts mechanical energy into electrical energy Converts electrical energy into mechanical energy Creates mechanical energy Creates electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics One thousand microns is equal to 10-9m 10-12m 10-6m 10-3m 10-9m 10-12m 10-6m 10-3m ANSWER DOWNLOAD EXAMIANS APP
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