Physics Among the following materials sound travels fastest in Vacuum Air Water Steel Vacuum Air Water Steel ANSWER DOWNLOAD EXAMIANS APP
Physics An electron and a proton starting from rest get accelerated through potential difference of 100 kV. The final speed of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct? Cannot be determined Ve = Vp Ve < Vp Ve > Vp Cannot be determined Ve = Vp Ve < Vp Ve > Vp ANSWER DOWNLOAD EXAMIANS APP
Physics Which metal is the best conductor of heat? Silver All of these Gold Copper Silver All of these Gold Copper ANSWER DOWNLOAD EXAMIANS APP
Physics Flywheel is an important part of a steam engine because it : Helps the engine in keeping the speed uniform Accelerates the speed of the engine Decreases the moment of inertia Gives strength to the engine Helps the engine in keeping the speed uniform Accelerates the speed of the engine Decreases the moment of inertia Gives strength to the engine ANSWER DOWNLOAD EXAMIANS APP
Physics When a vibrating tuning fork is placed on a table, a loud sound is heard. This is due to : Reflection Damped vibrations Refraction Forced vibrations Reflection Damped vibrations Refraction Forced vibrations ANSWER DOWNLOAD EXAMIANS APP
Physics When two semiconductors of pand n-type are brought in contact, they form p-n junction which acts like a/an Conductor Amplifier Rectifier Oscillator Conductor Amplifier Rectifier Oscillator ANSWER DOWNLOAD EXAMIANS APP
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