Physics Ozone layer above the surface of Earth provides a shield against Ultra-violet rays X-rays Infra-red rays Gamma rays Ultra-violet rays X-rays Infra-red rays Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Physics Mach number is used in connection with the speed of ships spacecraft sound aircraft ships spacecraft sound aircraft ANSWER DOWNLOAD EXAMIANS APP
Physics The alluminating powers of two sources are compared by A polarimeter A fluxmeter A photometer A spectrometer A polarimeter A fluxmeter A photometer A spectrometer ANSWER DOWNLOAD EXAMIANS APP
Physics During hot weather, the fan produces a feeling of comfort. This is because Our perspiration eva-porates rapidly Fan cools the air Conductivity of air increases Fan supplies cool air Our perspiration eva-porates rapidly Fan cools the air Conductivity of air increases Fan supplies cool air ANSWER DOWNLOAD EXAMIANS APP
Physics The best conductor of electricity among the following is : Silver Iron Copper Aluminium Silver Iron Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Physics A vacuum cleaner works on the principle of pressure difference. On the moon it will Not work at all Work as efficiently as on the earth Work with increased efficiency Work with reduced efficiency Not work at all Work as efficiently as on the earth Work with increased efficiency Work with reduced efficiency ANSWER DOWNLOAD EXAMIANS APP
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