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. 80 40 2000 4000 80 40 2000 4000 ANSWER DOWNLOAD EXAMIANS APP
Physics The energy of a photon, whose momentum is 10 MeV/c, where c is the speed of light, is given by 100 MeV 10 MeV 0.1 MeV 1 MeV 100 MeV 10 MeV 0.1 MeV 1 MeV ANSWER DOWNLOAD EXAMIANS APP
Physics The SI unit for measuring work and energy is Watt Ohm Joule Farad Watt Ohm Joule Farad ANSWER DOWNLOAD EXAMIANS APP
Physics A mirage occurs because of Total internal reflection by layers of air Diffraction of light Interference of light Reflection by hot ground Total internal reflection by layers of air Diffraction of light Interference of light Reflection by hot ground ANSWER DOWNLOAD EXAMIANS APP
Physics The inability of a body to change its state of rest or uniform motion along a straight line is called its Inertia Acceleration Momentum Velocity Inertia Acceleration Momentum Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics The splitting of different colours of light in a prism is : Refraction of light Reflection of light Disperson of light Diffraction of light Refraction of light Reflection of light Disperson of light Diffraction of light ANSWER DOWNLOAD EXAMIANS APP