Physics Find the resistance (in mega) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200m. 40 4000 80 2000 40 4000 80 2000 ANSWER DOWNLOAD EXAMIANS APP
Physics Refractive Index of glass with respect to water is 44082 43924 44052 43864 44082 43924 44052 43864 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 0.12638888888889 0.12777777777778 0.20902777777778 0.21111111111111 0.12638888888889 0.12777777777778 ANSWER DOWNLOAD EXAMIANS APP
Physics The sparkling of a diamond is due to Total internal reflection of light Refraction of light Polarisation of light Interference of light Total internal reflection of light Refraction of light Polarisation of light Interference of light ANSWER DOWNLOAD EXAMIANS APP
Physics Vehicle tyres are inflated properly To ensure smooth running. To allow the vehicle to take more load. To go fast and save fuel. To avoid skidding and to minimise friction To ensure smooth running. To allow the vehicle to take more load. To go fast and save fuel. To avoid skidding and to minimise friction ANSWER DOWNLOAD EXAMIANS APP
Physics If a copper wire is increased to double its length, its resistance will become One–fourth Four times Half Double One–fourth Four times Half Double ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS