Physics Which of the following is not true about X-rays? Can affect photographic plates Travel with the speed of light Have low penetrating power Can be reflected or refracted Can affect photographic plates Travel with the speed of light Have low penetrating power Can be reflected or refracted ANSWER DOWNLOAD EXAMIANS APP
Physics What is the principle of a ''Life Jacket"? It provides oxygen to a drowning person The person can sit on it like a raft It decreases the volume of the person to keep him afloat It increases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It decreases the volume of the person to keep him afloat It increases the volume of the person to keep him afloat ANSWER DOWNLOAD EXAMIANS APP
Physics Skating on ice is possible because The pressure on the ice due to skate raises its melting point The surface of ice is smooth Ice is cold The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water The pressure on the ice due to skate raises its melting point The surface of ice is smooth Ice is cold The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of wood is held under water. The upthrust on it will be: Less than weight of the wood More than weight of the wood Equal to the weight of the wood Zero Less than weight of the wood More than weight of the wood Equal to the weight of the wood Zero ANSWER DOWNLOAD EXAMIANS APP
Physics Gravitational force is maximum at which place Equator Tropic of capricorn Tropic of cancer Poles Equator Tropic of capricorn Tropic of cancer Poles ANSWER DOWNLOAD EXAMIANS APP
Physics Oil rises up the wick in a lamp because Oil is very light Of the surface tension phenomenon Of the diffusion of oil through the wick Of the capillary action phenomenon Oil is very light Of the surface tension phenomenon Of the diffusion of oil through the wick Of the capillary action phenomenon ANSWER DOWNLOAD EXAMIANS APP
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