Physics The function of ball bearings in a wheel is : To increase friction To convert kinetic friction into rolling friction To convert static friction into kinetic friction Just for convenience To increase friction To convert kinetic friction into rolling friction To convert static friction into kinetic friction Just for convenience ANSWER DOWNLOAD EXAMIANS APP
Physics Oil raise up the wick in a lamp. The principle involves the diffusion of oil through the wick capillary action phenomenon the liquid state of oil volatility of oil the diffusion of oil through the wick capillary action phenomenon the liquid state of oil volatility of oil ANSWER DOWNLOAD EXAMIANS APP
Physics What property of matter is momentum related to? Velocity Both A & B Mass None of these Velocity Both A & B Mass None of these ANSWER DOWNLOAD EXAMIANS APP
Physics For a ray of light to suffer total internal reflection it has to pass from : Water to glass Air to water Air to glass Glass to water Water to glass Air to water Air to glass Glass to water ANSWER DOWNLOAD EXAMIANS APP
Physics The width of depletion layer of a P-N junction Decreases with light doping Increases with heavy doping Is increased under reverse bias Is independent of applied voltage Decreases with light doping Increases with heavy doping Is increased under reverse bias Is independent of applied voltage ANSWER DOWNLOAD EXAMIANS APP
Physics Ultrasound devices operate with minimum frequency from 45 kHz 60 kHz 35 kHz 20kHz 45 kHz 60 kHz 35 kHz 20kHz ANSWER DOWNLOAD EXAMIANS APP
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