Physics Ball bearings are used in cycles, scooters etc to None of these Increase the friction between the wheel and the axle Reduce the friction between the wheel and the axle Reduce the friction between ground and the whee None of these Increase the friction between the wheel and the axle Reduce the friction between the wheel and the axle Reduce the friction between ground and the whee ANSWER DOWNLOAD EXAMIANS APP
Physics Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength. X - rays, infrared, visible, microwave Microwave, infrared, visible. X-rays Visible, infrared, microwave, X-rays X -rays, visible, infrared, microwave X - rays, infrared, visible, microwave Microwave, infrared, visible. X-rays Visible, infrared, microwave, X-rays X -rays, visible, infrared, microwave ANSWER DOWNLOAD EXAMIANS APP
Physics The width of depletion layer of a P-N junction Increases with heavy doping Is independent of applied voltage Is increased under reverse bias Decreases with light doping Increases with heavy doping Is independent of applied voltage Is increased under reverse bias Decreases with light doping ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is not a property of electromagnetic waves? Electromagnetic waves do not require a medium to propagate. Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not show interference and diffraction. Electromagnetic waves are transverse waves Electromagnetic waves do not require a medium to propagate. Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not show interference and diffraction. Electromagnetic waves are transverse waves ANSWER DOWNLOAD EXAMIANS APP
Physics To convert temperature from Celcius to Kelvin scale, you must ________ the given temperature. Add 273 Subtract 273 Multiply 273 Divide by 273 Add 273 Subtract 273 Multiply 273 Divide by 273 ANSWER DOWNLOAD EXAMIANS APP
Physics A small gap is left at the joints of rails in a railway track to Avoid the tracks being distorted due to seasonal temperature variation Control the speed of train Keep the rails equidistant Avoid the heating of tracks to high temperature Avoid the tracks being distorted due to seasonal temperature variation Control the speed of train Keep the rails equidistant Avoid the heating of tracks to high temperature ANSWER DOWNLOAD EXAMIANS APP
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