Physics Why the needle of iron swims on water surface when it is kept gently ? Due to its shape The density of needle is less than that of water Due to surface tension It will remain under the water, when it will displace more water than its weight Due to its shape The density of needle is less than that of water Due to surface tension It will remain under the water, when it will displace more water than its weight ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because plastics have a lower density than metals metals have higher thermal capacity than plastics metals are good conductor of heat plastics have a higher thermal conductivity than metals plastics have a lower density than metals metals have higher thermal capacity than plastics metals are good conductor of heat plastics have a higher thermal conductivity than metals ANSWER DOWNLOAD EXAMIANS APP
Physics An object which absorbs all colours and reflects none appears: White Grey Black Blue White Grey Black Blue ANSWER DOWNLOAD EXAMIANS APP
Physics Who was the first scientist to discover Electrons? Albert Einstein Isaac Newton J.J Thompson J.C. Bose Albert Einstein Isaac Newton J.J Thompson J.C. Bose ANSWER DOWNLOAD EXAMIANS APP
Physics The best conductor of electricity among the following is : Silver Iron Aluminium Copper Silver Iron Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
Physics The speed of light will be minimum while passing through Air Vaccum Glass Water Air Vaccum Glass Water ANSWER DOWNLOAD EXAMIANS APP
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