Physics Radiocarbon is produced in the atmosphere as a result of 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. 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. ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to change the speed of an electric fan is Regulator Amplifier Rectifier Switch Regulator Amplifier Rectifier Switch ANSWER DOWNLOAD EXAMIANS APP
Physics Vegetables are cooked in lesser time by adding a pinch of salt while cooking because Latent heat of vaporization of water increases Boiling point of water decreases Latent heat of vaporization of water decreases Boiling point of water increases Latent heat of vaporization of water increases Boiling point of water decreases Latent heat of vaporization of water decreases Boiling point of water increases ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum? Barkla's experiment on scattering of X-rays Geiger and Marsdens experiment on scattering of alpha particles Bunsen and Kirchhoff's experiment Lamb-Rutherford experiment Barkla's experiment on scattering of X-rays Geiger and Marsdens experiment on scattering of alpha particles Bunsen and Kirchhoff's experiment Lamb-Rutherford experiment ANSWER DOWNLOAD EXAMIANS APP
Physics Pick out the scalar quantity Velocity Force Pressure Acceleration Velocity Force Pressure Acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics Even after sunset, the air near the Earth's surface continue to receive heat due to Convection Terrestrial Radiation Conduction Insolation Convection Terrestrial Radiation Conduction Insolation ANSWER DOWNLOAD EXAMIANS APP
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