Physics A periscope works by the principle of Refraction Total internal reflection Reflection Diffraction Refraction Total internal reflection Reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics When pressure is increased the melting point of ice Does not change Depends on the impurities in the ice Increases Decreases Does not change Depends on the impurities in the ice Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics When a piece of pure silicon is doped with aluminium, then The doped silicon piece will become n-type The resistivity of the doped silicon piece will increase The doped silicon piece will become p-type The conductivity of the doped silicon piece will remain the same The doped silicon piece will become n-type The resistivity of the doped silicon piece will increase The doped silicon piece will become p-type The conductivity of the doped silicon piece will remain the same ANSWER DOWNLOAD EXAMIANS APP
Physics Why does ice covered in sawdust not melt quickly ? Sawdust is a bad conductor of heat The water is absorbed by sawdust Sawdust is good conductor of heat Sawdust does not allow the air to touch the ice Sawdust is a bad conductor of heat The water is absorbed by sawdust Sawdust is good conductor of heat Sawdust does not allow the air to touch the ice ANSWER DOWNLOAD EXAMIANS APP
Physics Propagation of sound can be visualised as propagation of ________ variations in the medium Density Porosity Viscosity Elasticity Density Porosity Viscosity Elasticity ANSWER DOWNLOAD EXAMIANS APP
Physics Hydro-electric power is a: A mixture of renewable and non-renewable natural resource non-renewable natural resource Neither renewable nor non renewable resource Renewable natural resource A mixture of renewable and non-renewable natural resource non-renewable natural resource Neither renewable nor non renewable resource Renewable natural resource ANSWER DOWNLOAD EXAMIANS APP
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