Physics Which one among the following components is used as an amplifying device? Transformer Diode Transistor Capacitor Transformer Diode Transistor Capacitor ANSWER DOWNLOAD EXAMIANS APP
Physics Why does a cannon recoil after firing ? Backward thrust of gases produced Newton's first law of motion Conservation of energy Newton's third law of motion Backward thrust of gases produced Newton's first law of motion Conservation of energy Newton's third law of motion ANSWER DOWNLOAD EXAMIANS APP
Physics The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as Ultrasonics Audible sounds Infrasonics Megasonics Ultrasonics Audible sounds Infrasonics Megasonics ANSWER DOWNLOAD EXAMIANS APP
Physics In radio-communication, the signals emitted by transmitting antenna are reflected on Ionosphere Troposphere Stratosphere Ozonosphere Ionosphere Troposphere Stratosphere Ozonosphere ANSWER DOWNLOAD EXAMIANS APP
Physics If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will None of these Fall behind him Fall into his hand Fall in front of him None of these Fall behind him Fall into his hand Fall in front of him ANSWER DOWNLOAD EXAMIANS APP
Physics A transformer Converts DC to AC Is used to decrease or increase AC voltage Converts electrical energy into mechanical energy Converts AC voltage to D.C. voltage Converts DC to AC Is used to decrease or increase AC voltage Converts electrical energy into mechanical energy Converts AC voltage to D.C. voltage ANSWER DOWNLOAD EXAMIANS APP
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