Physics To resolve an object in an electron microscope, The wavelength of the electrons must be greater than the diameter of the object. Both A & B The wavelength of the electrons must be close to the diameter of the object None of these The wavelength of the electrons must be greater than the diameter of the object. Both A & B The wavelength of the electrons must be close to the diameter of the object None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Atmospheric pressure exerted on earth is due to Rotation of earth Uneven heating of earth Revolution of earth Gravitational pull Rotation of earth Uneven heating of earth Revolution of earth Gravitational pull ANSWER DOWNLOAD EXAMIANS APP
Physics Superconductors are those elements Whose conductivity is intermediate between metals and insulators Whose resistance falls almost to zero at very low temperatures Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose conductivity is intermediate between metals and insulators Whose resistance falls almost to zero at very low temperatures Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures ANSWER DOWNLOAD EXAMIANS APP
Physics The term ''equinox' means The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates The path which the Earthtakes around the Sun When the day and night are of equal duration The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon The axis of the Earth around which it rotates The path which the Earthtakes around the Sun When the day and night are of equal duration ANSWER DOWNLOAD EXAMIANS APP
Physics Carbon Arc lamps are commonly used in Vehicles Cinema projectors Domestic lighting Photography Vehicles Cinema projectors Domestic lighting Photography ANSWER DOWNLOAD EXAMIANS APP
Physics Skating on ice is possible because The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water The surface of ice is smooth Ice is cold The pressure on the ice due to skate raises its melting point The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water The surface of ice is smooth Ice is cold The pressure on the ice due to skate raises its melting point ANSWER DOWNLOAD EXAMIANS APP
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