Physics Ball bearings are used in cycles, scooters etc to Reduce the friction between ground and the whee Reduce the friction between the wheel and the axle None of these Increase the friction between the wheel and the axle Reduce the friction between ground and the whee Reduce the friction between the wheel and the axle None of these Increase the friction between the wheel and the axle ANSWER DOWNLOAD EXAMIANS APP
Physics The electrical domestic tube light gives white fluorescent light because of Vacuum inside the tube Heavy current Falling of ultra violet rays on the white inner coating of the tube Colision between molecules of filled gas under electric current Vacuum inside the tube Heavy current Falling of ultra violet rays on the white inner coating of the tube Colision between molecules of filled gas under electric current 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 Oscillator Amplifier Rectifier Conductor Oscillator Amplifier Rectifier ANSWER DOWNLOAD EXAMIANS APP
Physics Stationary wave is formed by Two waves of same frequency travelling in the opposite direction Two waves of the same speed superposing A transverse wave superposing a longitudinal wave Two waves of same frequency travelling in the same direction Two waves of same frequency travelling in the opposite direction Two waves of the same speed superposing A transverse wave superposing a longitudinal wave Two waves of same frequency travelling in the same direction ANSWER DOWNLOAD EXAMIANS APP
Physics Alpha particle is the nucleus of an atom of Helium Hydrogen Lithium Oxygen Helium Hydrogen Lithium Oxygen ANSWER DOWNLOAD EXAMIANS APP
Physics Heat stored in water vapour is Absolute heat Specific heat Latent heat Relative heat Absolute heat Specific heat Latent heat Relative heat ANSWER DOWNLOAD EXAMIANS APP
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