Physics Why the needle of iron swims on water surface when it is kept gently ? Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water Due to its shape Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water Due to its shape ANSWER DOWNLOAD EXAMIANS APP
Physics A small piece of a substance is weakly attracted by a strong magnetic field. The substance is Non-magnetic Diamagnetic Paramagnetic Ferromagnetic Non-magnetic Diamagnetic Paramagnetic Ferromagnetic ANSWER DOWNLOAD EXAMIANS APP
Physics Where do the electrical charges reside in a charged conductor? Throughout the body At the core Depended upon the nature of the body Outer surface of the body Throughout the body At the core Depended upon the nature of the body Outer surface of the body ANSWER DOWNLOAD EXAMIANS APP
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 Decreased by 4% Decreased by 2% Increased by 4% Increased by 2% Decreased by 4% Decreased by 2% Increased by 4% Increased by 2% ANSWER DOWNLOAD EXAMIANS APP
Physics Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: Intense sunlight at noon Both the heating effect of current and hysteresis loss The heating effect of current alone Hysteresis loss alone Intense sunlight at noon Both the heating effect of current and hysteresis loss The heating effect of current alone Hysteresis loss alone ANSWER DOWNLOAD EXAMIANS APP
Physics If both the mass and the velocity of a body is increased to twice of their magnitude, the kinetic energy will increase by 8 times 2 times 16 times 4 times 8 times 2 times 16 times 4 times ANSWER DOWNLOAD EXAMIANS APP
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