Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Conduction, convection and radiation Conduction and radiation only Conduction and convection only Convection and radiation only Conduction, convection and radiation Conduction and radiation only Conduction and convection only Convection and radiation only ANSWER DOWNLOAD EXAMIANS APP
Physics A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N). 80 10 40 20 80 10 40 20 ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following instruments is used to study dispersion of light ? Photometer Spectrometer Microscope Telescope Photometer Spectrometer Microscope Telescope ANSWER DOWNLOAD EXAMIANS APP
Physics Stars appear twinkling because of ......... of light. Emission Absorption Reflection Scattering Emission Absorption Reflection Scattering ANSWER DOWNLOAD EXAMIANS APP
Physics In sunlight a rose appears red. In green light, the same rose appears Green Yellow Black Red Green Yellow Black Red ANSWER DOWNLOAD EXAMIANS APP
Physics Friction can be reduced by changing from Dynamic to Static Rolling to Sliding Sliding to Rolling Static to Dynamic Dynamic to Static Rolling to Sliding Sliding to Rolling Static to Dynamic ANSWER DOWNLOAD EXAMIANS APP
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