Test Preparation on Electron, Photon, Photo-electric Effect and X-Rays - II Physics Test Series For NEET-2020
G.P. Thomson experimentally confirmed the existence of matter waves by the phenomena
(a) G.P. Thomson experimentally confirmed the existence of matter waves (de Broglie's hypothesis) by demonstrating that electron beams are diffracted when they are scattered by the regular atomic arrays of crystals.
A particle which has zero rest mass and non-zero energy and momentum, must travel with a speed
(a) Particle is photon and it travels with the velocity equal to light in vacuum.