Physics Which one of the following determines the sharpness of image in a camera ? The focal length of the lens The exposure time The aperture Size of the camera The focal length of the lens The exposure time The aperture Size of the camera ANSWER DOWNLOAD EXAMIANS APP
Physics A black body can absorb radiations of : Lower wavelengths only Higher wavelengths only All wavelengths Intermediate wavelengths only Lower wavelengths only Higher wavelengths only All wavelengths Intermediate wavelengths only 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 In a bipolar junction transistor The emitter has the least concentration of impurity The base has the least concentration of impurity The collector has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity The emitter has the least concentration of impurity The base has the least concentration of impurity The collector has the least concentration of impurity All the three regions (the emitter, the base and the collector) have equal concentrations of impurity ANSWER DOWNLOAD EXAMIANS APP
Physics Which combination of colour is the most convenient during day and night time ? Organe and blue White and black Yellow and blue Red and green Organe and blue White and black Yellow and blue Red and green ANSWER DOWNLOAD EXAMIANS APP
Physics Two stones of unequal masses are thrown vertically up with the same velocity. Which of the following will happen? The heavier mass will reach greater height Any of them may reach greater height Both will reach the same height The lighter mass will reach greater height The heavier mass will reach greater height Any of them may reach greater height Both will reach the same height The lighter mass will reach greater height ANSWER DOWNLOAD EXAMIANS APP
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