Physics After long periods of use, a grey spot develops on the inside of a bulb. This is because Dust inside the bulb condenses on the top The heat of the bulb scorches the glass at the top The tungsten filament evaporates and collects there Glass undergoes a change due to the heat Dust inside the bulb condenses on the top The heat of the bulb scorches the glass at the top The tungsten filament evaporates and collects there Glass undergoes a change due to the heat ANSWER DOWNLOAD EXAMIANS APP
Physics Radio waves sent out by a radio stations are reflected by Ionosphere Mesosphere Stratosphere Troposphere Ionosphere Mesosphere Stratosphere Troposphere ANSWER DOWNLOAD EXAMIANS APP
Physics The instrument which uses sound waves to measure the depth of oceans is Altimeter Sonar Radar Venturimeter Altimeter Sonar Radar Venturimeter ANSWER DOWNLOAD EXAMIANS APP
Physics What is the unit of the physical quantity "Inductance"? Henry Farad Tesla Weber Henry Farad Tesla Weber ANSWER DOWNLOAD EXAMIANS APP
Physics Sun's heat reaches us by Radiation Reflection Conduction Convection Radiation Reflection Conduction Convection ANSWER DOWNLOAD EXAMIANS APP
Physics The lift of an aeroplane is caused by Law of gravitation Theorem of continuity Bernouli's theorem Pascel's law Law of gravitation Theorem of continuity Bernouli's theorem Pascel's law ANSWER DOWNLOAD EXAMIANS APP
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