Physics An electron and a proton starting from rest get accelerated through potential difference of 100 kV. The final speed of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct? Ve = Vp Ve < Vp Ve > Vp Cannot be determined Ve = Vp Ve < Vp Ve > Vp Cannot be determined ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of change of momentum is Force Pressure Area Velocity Force Pressure Area Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is: 150 J 100 J 50 J 75 J 150 J 100 J 50 J 75 J ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Metals have higher thermal capacity than plastics Plastics have a lower density than metals Metals are good conductors of heat Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics Plastics have a lower density than metals Metals are good conductors of heat Plastics have a higher thermal conductivity than metals ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Unchanged Depends upon the metal Increases Decreases Unchanged Depends upon the metal Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is 33 km 0.33 km 1200 m 3.33 km 33 km 0.33 km 1200 m 3.33 km ANSWER DOWNLOAD EXAMIANS APP
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