Physics Nuclear sizes are expressed in a unit named Tesla Newton Fermi Angstrom Tesla Newton Fermi Angstrom ANSWER DOWNLOAD EXAMIANS APP
Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 4.2 J 2268 J 336 J 80 J 4.2 J 2268 J 336 J 80 J ANSWER DOWNLOAD EXAMIANS APP
Physics Propagation of sound can be visualised as propagation of ________ variations in the medium Porosity Density Elasticity Viscosity Porosity Density Elasticity Viscosity ANSWER DOWNLOAD EXAMIANS APP
Physics Ball bearings are used in cycles, scooters etc to 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 Reduce the friction between the wheel and the axle Increase the friction between the wheel and the axle ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided ANSWER DOWNLOAD EXAMIANS APP
Physics A bomb at rest explodes into a large number of tiny fragments. The total momentum of all the fragments Is infinity Depends on the total mass of all the fragments Depends on the speeds of various fragments Is zero Is infinity Depends on the total mass of all the fragments Depends on the speeds of various fragments Is zero ANSWER DOWNLOAD EXAMIANS APP
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