Physics Ball bearings are used in cycles, scooters etc to 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 Reduce the friction between ground and the whee Reduce the friction between the wheel and the axle None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Purity of a metal can be determined with the help of Conservation of mass principle Archimedes principle Boyle's law Pascal's law Conservation of mass principle Archimedes principle Boyle's law Pascal's law ANSWER DOWNLOAD EXAMIANS APP
Physics In beta decay what is emitted Proton All of these Electron Neutron Proton All of these Electron Neutron ANSWER DOWNLOAD EXAMIANS APP
Physics Materials that usually are good conductors of electricity? Aluminium Wood Lead Nickel Aluminium Wood Lead Nickel ANSWER DOWNLOAD EXAMIANS APP
Physics Electromagnet is constructed with which of the following ? Steel Nickel Aluminium Soft Iron Steel Nickel Aluminium Soft Iron ANSWER DOWNLOAD EXAMIANS APP
Physics When a body falls from an aeroplane, there is increase in its Potential energy Mass Acceleration Kinetic energy Potential energy Mass Acceleration Kinetic energy ANSWER DOWNLOAD EXAMIANS APP
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