Physics The ''Greenhouse effect' is mainly due to increase in atmospheric Ozone Nitrogen Carbon dioxide Sulphur dioxide Ozone Nitrogen Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Physics In a vacuum, all electromagnetic waves have the same Wavelenth Velocity Frequency All listed here Wavelenth Velocity Frequency All listed here ANSWER DOWNLOAD EXAMIANS APP
Physics An object which absorbs all colours and reflects none appears: Grey Blue Black White Grey Blue Black White ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibre works on which of the following principle of light? Total internal reflection Reflection Diffraction Refraction Total internal reflection Reflection Diffraction Refraction 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 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 Which one of the following reflects back more sunlight as compared to other three? Paddy crop land Land covered with fresh snow Sand desert Prairie land Paddy crop land Land covered with fresh snow Sand desert Prairie land ANSWER DOWNLOAD EXAMIANS APP
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