Physics A micron is equal to 0.1 mm 0.001 mm 0.0001 mm 0.01 mm 0.1 mm 0.001 mm 0.0001 mm 0.01 mm ANSWER DOWNLOAD EXAMIANS APP
Physics Convex mirrors are used as a rear view mirror in motor cycles because It forms erect (upright) image It forms real image All of these It forms smaller image as compared with object It forms erect (upright) image It forms real image All of these It forms smaller image as compared with object ANSWER DOWNLOAD EXAMIANS APP
Physics Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: Hysteresis loss alone Intense sunlight at noon Both the heating effect of current and hysteresis loss The heating effect of current alone Hysteresis loss alone Intense sunlight at noon Both the heating effect of current and hysteresis loss The heating effect of current alone ANSWER DOWNLOAD EXAMIANS APP
Physics When a person sitting on a swing stands up on the swing, the frequency of oscillation Increases Becomes infinite Does not change Decreases Increases Becomes infinite Does not change Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics An electron microscope gives higher magnification than an optical microscope, because : 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 The velocity of electron is smaller than that of visible light It uses more powerful lenses ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Decreases Unchanged Depends upon the metal Increases Decreases Unchanged Depends upon the metal Increases ANSWER DOWNLOAD EXAMIANS APP
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