Physics When an electric bulb breaks, there is an explosive sound. That is due to None of these The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly The air outside rushing in to fill the vacuum inside the bulb None of these The chemical reaction between the gases inside the bulb The compressed gases inside rushing out suddenly The air outside rushing in to fill the vacuum inside the bulb ANSWER DOWNLOAD EXAMIANS APP
Physics A dynamo is a device which Converts mechanical energy into electrical energy Creates mechanical energy Creates electrical energy Converts electrical energy into mechanical energy Converts mechanical energy into electrical energy Creates mechanical energy Creates electrical energy Converts electrical energy into mechanical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Negative feedback in amplifiers Decreases bandwidth and decreases noise Increases bandwidth and decreases noise Increases bandwidth and increases noise Decreases bandwidth and increases noise Decreases bandwidth and decreases noise Increases bandwidth and decreases noise Increases bandwidth and increases noise Decreases bandwidth and increases noise ANSWER DOWNLOAD EXAMIANS APP
Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Chlorine Ozone Ammonia Carbon dioxide Chlorine Ozone Ammonia Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Physics Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is : 1.2 2 1 1.5 1.2 2 1 1.5 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? Conduction, convection and radiation Conduction and radiation only Convection and radiation only Conduction and convection only Conduction, convection and radiation Conduction and radiation only Convection and radiation only Conduction and convection only ANSWER DOWNLOAD EXAMIANS APP
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