Physics Heavy water is used in nuclear reactor to Increase speed of neutron Slow down neutron Increase temperature Absorb neutron Increase speed of neutron Slow down neutron Increase temperature Absorb neutron ANSWER DOWNLOAD EXAMIANS APP
Physics A micron is equal to 0.01 mm 0.0001 mm 0.001 mm 0.1 mm 0.01 mm 0.0001 mm 0.001 mm 0.1 mm ANSWER DOWNLOAD EXAMIANS APP
Physics Which one is the unit of surface tension of a liquid Joule/ mm Newton /m2 None of these Electron volt /cm2 Joule/ mm Newton /m2 None of these Electron volt /cm2 ANSWER DOWNLOAD EXAMIANS APP
Physics When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: Four times Remain same Three times Double Four times Remain same Three times Double ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following determines the sharpness of image in a camera ? Size of the camera The exposure time The focal length of the lens The aperture Size of the camera The exposure time The focal length of the lens The aperture 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 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. Lightning discharge in atmosphere. ANSWER DOWNLOAD EXAMIANS APP
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