Physics What is the principle of a ''Life Jacket"? It decreases the volume of the person to keep him afloat The person can sit on it like a raft It provides oxygen to a drowning person It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat The person can sit on it like a raft It provides oxygen to a drowning person It increases the volume of the person to keep him afloat ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? It expands or contracts according to its diameter Contracts Expands It expands or contracts according to its coefficient of expansion It expands or contracts according to its diameter Contracts Expands It expands or contracts according to its coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Electrical burns occur principally because of The heat generated by the flow of electrical current through the body The high energy of electrons All of these Radiation pulses of the electricity The heat generated by the flow of electrical current through the body The high energy of electrons All of these Radiation pulses of the electricity ANSWER DOWNLOAD EXAMIANS APP
Physics Who was the first scientist to discover Electrons? Isaac Newton J.J Thompson Albert Einstein J.C. Bose Isaac Newton J.J Thompson Albert Einstein J.C. Bose ANSWER DOWNLOAD EXAMIANS APP
Physics What is unit of Viscosity ? Newton second per square meter Coulomb Watt per meter per degree celcius Joule per kilogram per Kelvin Newton second per square meter Coulomb Watt per meter per degree celcius Joule per kilogram per Kelvin ANSWER DOWNLOAD EXAMIANS APP
Physics A copper disc has a hole. If the disc is heated, the size of the hole First increases and than decreases Increases No change Decreases First increases and than decreases Increases No change Decreases ANSWER DOWNLOAD EXAMIANS APP
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