Physics Solar cells work on the principle of Photoelectric effect Photovoltaic effect Photoconductive effect Photosynthesis Photoelectric effect Photovoltaic effect Photoconductive effect Photosynthesis ANSWER DOWNLOAD EXAMIANS APP
Physics What is a compound microscope? A microscope whose lenses are concave. A microscope that has two sets of lenses : an occular lens and an eyepiece. A microscope that has one lens. A microscope whose lenses are convex. A microscope whose lenses are concave. A microscope that has two sets of lenses : an occular lens and an eyepiece. A microscope that has one lens. A microscope whose lenses are convex. ANSWER DOWNLOAD EXAMIANS APP
Physics An electron microscope gives higher magnification than an optical microscope, because : It uses more powerful lenses The electrons have more energy than the light particles The velocity of electron is smaller than that of visible light The wavelength of electrons is smaller as compared to the wavelength of visible light It uses more powerful lenses The electrons have more energy than the light particles The velocity of electron is smaller than that of visible light The wavelength of electrons is smaller as compared to the wavelength of visible light ANSWER DOWNLOAD EXAMIANS APP
Physics One light year is equal to 9 trillion miles 8 trillion miles 6 trillion miles 2 trillion miles 9 trillion miles 8 trillion miles 6 trillion miles 2 trillion miles ANSWER DOWNLOAD EXAMIANS APP
Physics When hot-water is sprinkled on a hotter glass tumbler, it breaks because Water evaporates Glass reacts chemically with water Glass suddenly expands Glass suddenly contracts Water evaporates Glass reacts chemically with water Glass suddenly expands Glass suddenly contracts ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Convex mirror Parabolic mirror Concave mirror Plane mirror Convex mirror Parabolic mirror Concave mirror Plane mirror ANSWER DOWNLOAD EXAMIANS APP
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