Physics Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted. Shining black Rough black Shining white Rough white Shining black Rough black Shining white Rough white ANSWER DOWNLOAD EXAMIANS APP
Physics A star appears twinkling in the sky because of Diffraction of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere Diffraction of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is preferred for accelerating electrons? Cyclotron Synchrotron Van de Graft Generator Betatron Cyclotron Synchrotron Van de Graft Generator Betatron ANSWER DOWNLOAD EXAMIANS APP
Physics In the remote control of television, electromagnetic waves used are Infrared Radiowave Ultraviolet Microwave Infrared Radiowave Ultraviolet Microwave ANSWER DOWNLOAD EXAMIANS APP
Physics In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? Infrared Ultraviolet Visible X-ray Infrared Ultraviolet Visible X-ray ANSWER DOWNLOAD EXAMIANS APP
Physics A circular plate, a cube and a sphere, all made up of same material and having the samemass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling? Sphere All will cool at the same rate Cube Circular plate Sphere All will cool at the same rate Cube Circular plate ANSWER DOWNLOAD EXAMIANS APP
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