Physics Brightness of bulb depends on voltage or current? None Current Voltage Both A & B None Current Voltage Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics Bats can sense obstacles because they produce Ultrasonic sound waves Micro sound waves Infrasonic sound waves Supersonic sound waves Ultrasonic sound waves Micro sound waves Infrasonic sound waves Supersonic sound waves ANSWER DOWNLOAD EXAMIANS APP
Physics Nuclear Reactors are based on which of the following phenomenon? Nuclear Fusion Magnetic confinement of Plasma Controlled Nuclear Fission None of these Nuclear Fusion Magnetic confinement of Plasma Controlled Nuclear Fission None of these ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : Plastics have a higher thermal conductivity than metals Plastics have a lower density than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat Plastics have a higher thermal conductivity than metals Plastics have a lower density than metals Metals have higher thermal capacity than plastics Metals are good conductors of heat ANSWER DOWNLOAD EXAMIANS APP
Physics If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths? LUV < lVIS < lIR LUV > lVIS > lIR LUV > lIR > lVIS LUV < lIR < lVIS LUV < lVIS < lIR LUV > lVIS > lIR LUV > lIR > lVIS LUV < lIR < lVIS ANSWER DOWNLOAD EXAMIANS APP
Physics Large astronomical telescopes always use as objective lens combinations of lenses mirror None of these lens combinations of lenses mirror None of these ANSWER DOWNLOAD EXAMIANS APP
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