Physics Large astronomical telescopes always use as objective None of these combinations of lenses mirror lens None of these combinations of lenses mirror lens ANSWER DOWNLOAD EXAMIANS APP
Physics An electric fuse is based on The heating effect of the current The magnetic effect of the current All of these The chemical effect of the current The heating effect of the current The magnetic effect of the current All of these The chemical effect of the current ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following determines the sharpness of image in a camera ? The focal length of the lens The exposure time Size of the camera The aperture The focal length of the lens The exposure time Size of the camera The aperture ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are pieces of Soft iron Steel Nickel Cobalt Soft iron Steel Nickel Cobalt ANSWER DOWNLOAD EXAMIANS APP
Physics The optical phenomenon that is primarily responsible for the observation of rainbow on a rainy day is Dispersion Interference Reflection Diffraction Dispersion Interference Reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics One watt-hour is equivalent to 3.6 x 10-3 J 6.3 x 103 J 6.3 x 10-7 J 3.6 x 103 J 3.6 x 10-3 J 6.3 x 103 J 6.3 x 10-7 J 3.6 x 103 J ANSWER DOWNLOAD EXAMIANS APP
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