Physics To resolve an object in an electron microscope, 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 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 ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are methods of heat transfer? Revolution Evaporation Convection Thermal Expansion Revolution Evaporation Convection Thermal Expansion ANSWER DOWNLOAD EXAMIANS APP
Physics For an ideal gas, which one of the following statements does not hold true? The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same The speed of all gas molecules is same There is no interactive force between the molecules. The potential energy of the gas molecules is zero The kinetic energies of all gas molecules are not same The speed of all gas molecules is same There is no interactive force between the molecules. ANSWER DOWNLOAD EXAMIANS APP
Physics Propagation of sound can be visualised as propagation of ________ variations in the medium Viscosity Elasticity Porosity Density Viscosity Elasticity Porosity Density ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the fastest communication channel? Radio wave All are operating at nearly the same propagation speed Optical fiber Microwave Radio wave All are operating at nearly the same propagation speed Optical fiber Microwave ANSWER DOWNLOAD EXAMIANS APP
Physics In a Laser (say neon laser) all the atoms emit the light waves of Same phase Same frequency Same amplitude All of these Same phase Same frequency Same amplitude All of these ANSWER DOWNLOAD EXAMIANS APP
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