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 and radiation only Conduction and convection only Conduction, convection and radiation Convection and radiation only Conduction and radiation only Conduction and convection only Conduction, convection and radiation Convection and radiation only ANSWER DOWNLOAD EXAMIANS APP
Physics The light rays used for eliminating bacteria Microwave radiation Ultra-violet radiation X-rays Infrared rays Microwave radiation Ultra-violet radiation X-rays Infrared rays ANSWER DOWNLOAD EXAMIANS APP
Physics A current carrying conductor is associated with A magnetic field An electro-magnetic field An electric field An electrostatic field A magnetic field An electro-magnetic field An electric field An electrostatic field ANSWER DOWNLOAD EXAMIANS APP
Physics In which of the following processes is energy released ? Ingestion Absorption Photosynthesis Respiration Ingestion Absorption Photosynthesis Respiration ANSWER DOWNLOAD EXAMIANS APP
Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 10 cm 15 cm 20 cm 5 cm 10 cm 15 cm 20 cm 5 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Oil rises up the wick in a lamp because Of the capillary action phenomenon Of the surface tension phenomenon Oil is very light Of the diffusion of oil through the wick Of the capillary action phenomenon Of the surface tension phenomenon Oil is very light Of the diffusion of oil through the wick ANSWER DOWNLOAD EXAMIANS APP
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