Physics Ball bearings are used in cycles, scooters etc to 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 Increase the friction between the wheel and the axle ANSWER DOWNLOAD EXAMIANS APP
Physics When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are Transverse Waves are not produced Longitudinal Both longitudinal and transverse Transverse Waves are not produced Longitudinal Both longitudinal and transverse ANSWER DOWNLOAD EXAMIANS APP
Physics A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: When it touches the ground Just before it touches the ground Just after it is dropped When it is just on the half-way When it touches the ground Just before it touches the ground Just after it is dropped When it is just on the half-way ANSWER DOWNLOAD EXAMIANS APP
Physics In the gamma decay of a nucleus Both the mass number and the atomic number of the nucleus change The mass number of the nucleus does not change whereas its atomic number changes The mass number of the nucleus changes whereas its atomic number does not change Neither the mass number nor the atomic number of the nucleus changes Both the mass number and the atomic number of the nucleus change The mass number of the nucleus does not change whereas its atomic number changes The mass number of the nucleus changes whereas its atomic number does not change Neither the mass number nor the atomic number of the nucleus changes ANSWER DOWNLOAD EXAMIANS APP
Physics A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ? Remain constant Will increase first and then dcrease Dacrease Increase Remain constant Will increase first and then dcrease Dacrease Increase ANSWER DOWNLOAD EXAMIANS APP
Physics Hydraulic brakes in automobile work on Poiseuille's principle Archimedes' principle Pascal's principle Bernoulli's principle Poiseuille's principle Archimedes' principle Pascal's principle Bernoulli's principle ANSWER DOWNLOAD EXAMIANS APP
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