Physics Ball bearings are used in cycles, scooters etc to Increase the friction between the wheel and the axle Reduce the friction between the wheel and the axle None of these Reduce the friction between ground and the whee Increase the friction between the wheel and the axle Reduce the friction between the wheel and the axle None of these Reduce the friction between ground and the whee ANSWER DOWNLOAD EXAMIANS APP
Physics The weight of a body acts through the centre of Buoyancy Gravity Mass Both (A) and (B) Buoyancy Gravity Mass Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Physics A bullet of mass 10gm is fired with a velocity of 40 m/s from a gun of mass 8 kg. Find the recoil velocity (in m/s) of the gun. 2 0.05 4 0.1 2 0.05 4 0.1 ANSWER DOWNLOAD EXAMIANS APP
Physics The pressure of a fluid varies with depth h as P = PQ+pgh, where p is the fluid density. This expression is associated with Bernoulli's principle Pascal's law Newton's law Archimedes' principle Bernoulli's principle Pascal's law Newton's law Archimedes' principle ANSWER DOWNLOAD EXAMIANS APP
Physics Photon is the fundamental unit/quantum of Magnetism Gravitation Light Electricity Magnetism Gravitation Light Electricity ANSWER DOWNLOAD EXAMIANS APP
Physics If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be equal to ________. 0.3 m 3 m 300 m 30 m 0.3 m 3 m 300 m 30 m ANSWER DOWNLOAD EXAMIANS APP
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