Physics The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 4 T 2 T 8 T 1 T 4 T 2 T 8 T 1 T ANSWER DOWNLOAD EXAMIANS APP
Physics The device used to change the speed of an electric fan is Switch Rectifier Amplifier Regulator Switch Rectifier Amplifier Regulator ANSWER DOWNLOAD EXAMIANS APP
Physics The flow of thermal energy is called Heat Current Potential Voltage Heat Current Potential Voltage ANSWER DOWNLOAD EXAMIANS APP
Physics A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle ? Parabolic Circle Great circle Hyper–parabolic Parabolic Circle Great circle Hyper–parabolic ANSWER DOWNLOAD EXAMIANS APP
Physics The force which makes a vehicle to stop when break is applied is called Gravitational force Frictional force Vanderwalls force Covalant force Gravitational force Frictional force Vanderwalls force Covalant force ANSWER DOWNLOAD EXAMIANS APP
Physics Ball bearings are used in cycles, scooters etc to Reduce the friction between the wheel and the axle Increase the friction between the wheel and the axle None of these Reduce the friction between ground and the whee Reduce the friction between the wheel and the axle Increase the friction between the wheel and the axle None of these Reduce the friction between ground and the whee ANSWER DOWNLOAD EXAMIANS APP
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