Physics To resolve an object in an electron microscope, The wavelength of the electrons must be greater than the diameter of the object. None of these The wavelength of the electrons must be close to the diameter of the object Both A & B The wavelength of the electrons must be greater than the diameter of the object. None of these The wavelength of the electrons must be close to the diameter of the object Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Dynamo Induction coil Rectifier Transformer Dynamo Induction coil Rectifier Transformer ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these is not a simple machine? A pair of scissors The pulley A ramp A lever A pair of scissors The pulley A ramp A lever ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to convert solar energy into electricity is Daniell cell Photovoltaic cell Electrochemical cell Galvanic cell Daniell cell Photovoltaic cell Electrochemical cell Galvanic cell ANSWER DOWNLOAD EXAMIANS APP
Physics The average kinetic energy of the molecules of an ideal gas is directly proportional to Temperature of environment Velocity of Molecules Mass of Molecules Absolute temperature of the gas Temperature of environment Velocity of Molecules Mass of Molecules Absolute temperature of the gas ANSWER DOWNLOAD EXAMIANS APP
Physics An object which absorbs all colours and reflects none appears: White Grey Blue Black White Grey Blue Black ANSWER DOWNLOAD EXAMIANS APP
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