Physics We feel cool when we sit near the fan, this is because Air vapourises the sweat on our body. We feel cool when air touches the body. Fan gives cool air. Fan cools surrounding air. Air vapourises the sweat on our body. We feel cool when air touches the body. Fan gives cool air. Fan cools surrounding air. ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following discovered X-rays? W.C Roentgen J.J Thomson James Chadwick Marie Curie W.C Roentgen J.J Thomson James Chadwick Marie Curie ANSWER DOWNLOAD EXAMIANS APP
Physics Ohm's law is valid in case of Conductor Insulator Superconductor Semiconductor Conductor Insulator Superconductor Semiconductor ANSWER DOWNLOAD EXAMIANS APP
Physics Radiocarbon is produced in the atmosphere as a result of Lightning discharge in atmosphere. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. Lightning discharge in atmosphere. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. ANSWER DOWNLOAD EXAMIANS APP
Physics A white and smooth surface is Good absorber and bad reflector of heat Bad absorber and bad reflector of heat Good absorber and good reflector of heat Bad absorber and good reflector of heat Good absorber and bad reflector of heat Bad absorber and bad reflector of heat Good absorber and good reflector of heat Bad absorber and good reflector of heat ANSWER DOWNLOAD EXAMIANS APP
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? Convection and radiation only Conduction, convection and radiation Conduction and convection only Conduction and radiation only Convection and radiation only Conduction, convection and radiation Conduction and convection only Conduction and radiation only ANSWER DOWNLOAD EXAMIANS APP
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