Physics After long periods of use, a grey spot develops on the inside of a bulb. This is because The tungsten filament evaporates and collects there Glass undergoes a change due to the heat The heat of the bulb scorches the glass at the top Dust inside the bulb condenses on the top The tungsten filament evaporates and collects there Glass undergoes a change due to the heat The heat of the bulb scorches the glass at the top Dust inside the bulb condenses on the top ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning is produced when Water vapour produces electricity in the clouds Strong opposite charges in different clouds break down the resistance offered by the intervening air Similar charges of electricity rush towards each other and then get repelled Clouds strike against impurities in air and the friction burns up these impurities Water vapour produces electricity in the clouds Strong opposite charges in different clouds break down the resistance offered by the intervening air Similar charges of electricity rush towards each other and then get repelled Clouds strike against impurities in air and the friction burns up these impurities ANSWER DOWNLOAD EXAMIANS APP
Physics Electrical Pressure is also called Power Current Voltage Resistance Power Current Voltage Resistance ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that Necessary centripetal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train Necessary centripetal force may be obtained from the horizontal component of the weight of the train The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train ANSWER DOWNLOAD EXAMIANS APP
Physics The working of the quartz crystal in the watch is based on the Photoelectric Effect Johnson Effect Edison Effect Piezo - electric Effect Photoelectric Effect Johnson Effect Edison Effect Piezo - electric Effect ANSWER DOWNLOAD EXAMIANS APP
Physics Which metal is the best conductor of heat? All of these Copper Silver Gold All of these Copper Silver Gold ANSWER DOWNLOAD EXAMIANS APP
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