Physics The frequency used in TV and radar system lies in VHF HF UHF SHF VHF HF UHF SHF ANSWER DOWNLOAD EXAMIANS APP
Physics The ''Greenhouse effect' is mainly due to increase in atmospheric Sulphur dioxide Nitrogen Ozone Carbon dioxide Sulphur dioxide Nitrogen Ozone Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Physics The light rays used for eliminating bacteria X-rays Ultra-violet radiation Infrared rays Microwave radiation X-rays Ultra-violet radiation Infrared rays Microwave radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is Homogeneous and transparent Of variable refractive index Made up of slabs of different refractive indices Inhomogeneous and transparent Homogeneous and transparent Of variable refractive index Made up of slabs of different refractive indices Inhomogeneous and transparent ANSWER DOWNLOAD EXAMIANS APP
Physics Mirage is due to: Magnetic disturbances in the atmosphere Depletion of ozone layer in the atmosphere Unequal heating of different parts of the atmosphere Equal heating of different parts of the atmosphere Magnetic disturbances in the atmosphere Depletion of ozone layer in the atmosphere Unequal heating of different parts of the atmosphere Equal heating of different parts of the atmosphere 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? Depends upon the metal Increases Unchanged Decreases Depends upon the metal Increases Unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
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