Physics Purity of a metal can be determined with the help of Boyle's law Pascal's law Archimedes principle Conservation of mass principle Boyle's law Pascal's law Archimedes principle Conservation of mass principle 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 : 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 conductors 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 conductors of heat ANSWER DOWNLOAD EXAMIANS APP
Physics The method of magnetisation is: Passing alternating current through it Hammering a magnet Heating a magnet Passing direct current through it Passing alternating current through it Hammering a magnet Heating a magnet Passing direct current through it ANSWER DOWNLOAD EXAMIANS APP
Physics A Fuse wire is characterised by Low resistance and high melting point Low resistance and low melting point High resistance and high melting point High resistance and low melting point Low resistance and high melting point Low resistance and low melting point High resistance and high melting point High resistance and low melting point 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: 100 J 150 J 50 J 75 J 100 J 150 J 50 J 75 J ANSWER DOWNLOAD EXAMIANS APP
Physics Shock-absorbers are usually made of steel as it : Has no ductile property Has lower elasticity Has higher elasticity Is not brittle Has no ductile property Has lower elasticity Has higher elasticity Is not brittle ANSWER DOWNLOAD EXAMIANS APP
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