Physics The electric current in a metal wire is due to the flow of - Ions Holes Electrons Protons Ions Holes Electrons Protons ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibres are based on the phenomenon of Total Internal Reflection Dispersion Interference Diffraction Total Internal Reflection Dispersion Interference Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics It is easy to burst a gas-filled balloon with a needle than with a nail. It is because Nail is more longer than needle. Gas is reactive with the needle. Needle exerts more pressure than nail on the balloon. Nail exerts more pressure than needle on the balloon. Nail is more longer than needle. Gas is reactive with the needle. Needle exerts more pressure than nail on the balloon. Nail exerts more pressure than needle on the balloon. ANSWER DOWNLOAD EXAMIANS APP
Physics Which phenomenon is responsible for the echo of sound wave? Interference Refraction Polarisation Reflection Interference Refraction Polarisation Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by Martin Luther Johannes Kepler Copernicus Galileo Martin Luther Johannes Kepler Copernicus Galileo ANSWER DOWNLOAD EXAMIANS APP
Physics A gap is left between two rails of a railway track to accommodate...... of the metal. Volume expansion Linear expansion Apparent expansion Areal expansion Volume expansion Linear expansion Apparent expansion Areal expansion ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS