Physics Suitable impurities are added to a semiconductor depending on its use. This is done in order to increase its life increase its electrical conductivity enable it to withstand higher voltages increase its electrical resistivity increase its life increase its electrical conductivity enable it to withstand higher voltages increase its electrical resistivity ANSWER DOWNLOAD EXAMIANS APP
Physics If an electron and a photon have the same wavelength, then they will have the same Energy Angular momentum Linear momentum Velocity Energy Angular momentum Linear momentum Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics At boiling point of liquids, its Vapour pressure decreases Atmospheric pressure increases Temperature remains constant Temperature increases Vapour pressure decreases Atmospheric pressure increases Temperature remains constant Temperature increases ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following is false about displacement? It is always positive Displacement is never greater than Distance Its SI unit is meter It can be positive, negative or zero It is always positive Displacement is never greater than Distance Its SI unit is meter It can be positive, negative or zero ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.20902777777778 0.21111111111111 0.12777777777778 0.12638888888889 0.20902777777778 0.21111111111111 0.12777777777778 0.12638888888889 ANSWER DOWNLOAD EXAMIANS APP
Physics 'Mirage' is an example of Refraction and total internal reflection of light Refraction of light only Total internal reflection of light only Dispersion of light only Refraction and total internal reflection of light Refraction of light only Total internal reflection of light only Dispersion of light only ANSWER DOWNLOAD EXAMIANS APP
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