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 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 ANSWER DOWNLOAD EXAMIANS APP
Physics The purpose of choke in a fluorescent lamp is : Ro decrease the voltage momentarily To decrease the resistance To increase the current flow To decrease the current flow Ro decrease the voltage momentarily To decrease the resistance To increase the current flow To decrease the current flow ANSWER DOWNLOAD EXAMIANS APP
Physics When a ship enters the sea from a river what will be the effect? It lowers It rises a little It sways It jolts It lowers It rises a little It sways It jolts ANSWER DOWNLOAD EXAMIANS APP
Physics A person can jump higher on the moon's surface than on the earth because : The moon is cooler than earth The acceleration due to gravity in moon is smaller than that on the earth. The moon's surface is rough The moon has no atmosphere The moon is cooler than earth The acceleration due to gravity in moon is smaller than that on the earth. The moon's surface is rough The moon has no atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 10 cm 20 cm 15 cm 5 cm 10 cm 20 cm 15 cm 5 cm ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following determines the pitch of a sound? Wavelength Loudness Amplitude Frequency Wavelength Loudness Amplitude Frequency ANSWER DOWNLOAD EXAMIANS APP
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