Physics Friction can be reduced by changing from Sliding to Rolling Dynamic to Static Rolling to Sliding Static to Dynamic Sliding to Rolling Dynamic to Static Rolling to Sliding Static to Dynamic ANSWER DOWNLOAD EXAMIANS APP
Physics The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because There is no air or any other gas in the bell jar The ringing is not loud enough The glass of the bell jar absorbs the sound waves The bell jar is too small There is no air or any other gas in the bell jar The ringing is not loud enough The glass of the bell jar absorbs the sound waves The bell jar is too small ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following instruments is used to study dispersion of light ? Microscope Photometer Telescope Spectrometer Microscope Photometer Telescope Spectrometer ANSWER DOWNLOAD EXAMIANS APP
Physics Force of impact is the force None of these By the objects weight When the objects meet By the speed of the object None of these By the objects weight When the objects meet By the speed of the object ANSWER DOWNLOAD EXAMIANS APP
Physics In severe winter, in cold countries water pipes burst because Contraction of water pipes High atmospheric pressure Water expands on freezing Combined effect of all the above three Contraction of water pipes High atmospheric pressure Water expands on freezing Combined effect of all the above three ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Metals are good conductors of heat Plastics have a lower density than metals Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a lower density than metals Plastics have a higher thermal conductivity than metals Metals have higher thermal capacity than plastics ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS