Physics Which one of the following determines the sharpness of image in a camera ? Size of the camera The exposure time The focal length of the lens The aperture Size of the camera The exposure time The focal length of the lens The aperture ANSWER DOWNLOAD EXAMIANS APP
Physics Land is considered a resource because it Costs little or nothing to use Is used to produce things Requires labor to be useful Is always available to use Costs little or nothing to use Is used to produce things Requires labor to be useful Is always available to use ANSWER DOWNLOAD EXAMIANS APP
Physics A doppler effect occurs when a source of sound moves Towards you None of these Away from you Both A & B Towards you None of these Away from you Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as Ultrasonics Audible sounds Infrasonics Megasonics Ultrasonics Audible sounds Infrasonics Megasonics ANSWER DOWNLOAD EXAMIANS APP
Physics The source of the Sun's energy is the process of Nuclear fusion Nuclear fission Thermionic emission Photoelectric emission Nuclear fusion Nuclear fission Thermionic emission Photoelectric emission ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Reflect back the heat given by earth Prevent cold waves from the sky descending on earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Reflect back the heat given by earth Prevent cold waves from the sky descending on earth ANSWER DOWNLOAD EXAMIANS APP
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