Physics What device converts light energy to electrical energy? Heliostats Photodiode Thermocouple Photovoltaic cell Heliostats Photodiode Thermocouple Photovoltaic cell ANSWER DOWNLOAD EXAMIANS APP
Physics It is easy to burst a gas-filled balloon with a needle than with a nail. It is because Nail is more longer than needle. Gas is reactive with the needle. Needle exerts more pressure than nail on the balloon. Nail exerts more pressure than needle on the balloon. Nail is more longer than needle. Gas is reactive with the needle. Needle exerts more pressure than nail on the balloon. Nail exerts more pressure than needle on the balloon. ANSWER DOWNLOAD EXAMIANS APP
Physics Conversion of sound energy into electrical energy is done by Microphone Solar cell Loudspeaker Gramophone Microphone Solar cell Loudspeaker Gramophone ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic field lines about a current-carrying wire Both of these None of these Extend radially from the wire Circle the wire in closed loops Both of these None of these Extend radially from the wire Circle the wire in closed loops ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following processes is responsible for the glittering of air bubble rising through water? Scattering of light Total internal reflection of light Refraction of light Reflection of light Scattering of light Total internal reflection of light Refraction of light Reflection of light 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 radiation only Conduction and convection only Convection and radiation only Conduction, convection and radiation Conduction and radiation only Conduction and convection only ANSWER DOWNLOAD EXAMIANS APP
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