Physics Why two thin shirts can keep us warmer than a single thick shirt in winter ? No radiation of heat takes place Air layer between two shirts works as good conductor Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts behaves like insulating media No radiation of heat takes place Air layer between two shirts works as good conductor Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts behaves like insulating media ANSWER DOWNLOAD EXAMIANS APP
Physics The sound produced by a bat is– Ultrasonic Subsonic Infrasonic Audible Ultrasonic Subsonic Infrasonic Audible ANSWER DOWNLOAD EXAMIANS APP
Physics A white and smooth surface is Bad absorber and good reflector of heat Bad absorber and bad reflector of heat Good absorber and bad reflector of heat Good absorber and good reflector of heat Bad absorber and good reflector of heat Bad absorber and bad reflector of heat Good absorber and bad reflector of heat Good absorber and good reflector of heat ANSWER DOWNLOAD EXAMIANS APP
Physics The working of the quartz crystal in the watch is based on the Edison Effect Johnson Effect Photoelectric Effect Piezo - electric Effect Edison Effect Johnson Effect Photoelectric Effect Piezo - electric Effect ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument that measures and records the relative humidity of air is Barometer Lactometer Hydrometer Hygrometer Barometer Lactometer Hydrometer Hygrometer ANSWER DOWNLOAD EXAMIANS APP
Physics Remote-sensing device has an inbuilt source of X-ray G-ray Infrared ray Ultraviolet ray X-ray G-ray Infrared ray Ultraviolet ray ANSWER DOWNLOAD EXAMIANS APP
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