Physics The cover of a solar cooker is made of glass because It rediates heat better than metals It retains the heat inside by the green house effect It reflects sun's rays It absorbs sun's rays It rediates heat better than metals It retains the heat inside by the green house effect It reflects sun's rays It absorbs sun's rays ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Rectifier Dynamo Induction coil Transformer Rectifier Dynamo Induction coil Transformer ANSWER DOWNLOAD EXAMIANS APP
Physics Inside an aeroplane, flying at a high altitude, the pressure is the same as that outside. normal humidity and partial vacuum are maintained. the pressure inside is less than the pressure outside. normal atmospheric pressure is maintained by the use of air pumps. the pressure is the same as that outside. normal humidity and partial vacuum are maintained. the pressure inside is less than the pressure outside. normal atmospheric pressure is maintained by the use of air pumps. ANSWER DOWNLOAD EXAMIANS APP
Physics At boiling point of liquids, its Atmospheric pressure increases Vapour pressure decreases Temperature increases Temperature remains constant Atmospheric pressure increases Vapour pressure decreases Temperature increases Temperature remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Radiocarbon is produced in the atmosphere as a result of Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. Lightning discharge in atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. Collision between fast neutrons and nitrogen nuclei present in the atmosphere. Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere. Lightning discharge in atmosphere. Action of ultraviolet light from the sun on atmospheric oxygen. ANSWER DOWNLOAD EXAMIANS APP
Physics Who indirectly determined the mass of the electron by measuring the charge of the electron? Rutherford Millikan Einstein Thomson Rutherford Millikan Einstein Thomson ANSWER DOWNLOAD EXAMIANS APP
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