Physics An electron microscope gives higher magnification than an optical microscope, because : The velocity of electron is smaller than that of visible light It uses more powerful lenses The electrons have more energy than the light particles The wavelength of electrons is smaller as compared to the wavelength of visible light The velocity of electron is smaller than that of visible light It uses more powerful lenses The electrons have more energy than the light particles The wavelength of electrons is smaller as compared to the wavelength of visible light ANSWER DOWNLOAD EXAMIANS APP
Physics Curie point is the temperature at which A metal loses conductivity Transmutation of metal occurs. Matter becomes radioactive A metal loses magnetic properties. A metal loses conductivity Transmutation of metal occurs. Matter becomes radioactive A metal loses magnetic properties. ANSWER DOWNLOAD EXAMIANS APP
Physics Every hot object emits ________ Ultraviolet rays Infrared rays X–rays Visible light Ultraviolet rays Infrared rays X–rays Visible light ANSWER DOWNLOAD EXAMIANS APP
Physics For photoelectric effect to take place, the metal used as the cathode should have ________ Low work function High melting point Low resistance Low melting point Low work function High melting point Low resistance Low melting point ANSWER DOWNLOAD EXAMIANS APP
Physics A periscope works on the principle of Refraction Reflection Diffraction Total internal reflection Refraction Reflection Diffraction Total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics An object that has kinetic energy must be At an elevated position Falling At rest Moving At an elevated position Falling At rest Moving ANSWER DOWNLOAD EXAMIANS APP
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