The particle which has zero mass but has energy is

A particle which has zero rest mass and non - zero energy and momentum must travel with a speed

A particle which has zero rest mass and non - zero energy and momentum must travel with a speed

J. chadwick discovered a sub atomic particle which has no charge but has mass nearly equal to that of a proton.Name the particle and give its location in an atom.

A particle moving with kinetic energy = 3J makes an elastic head-on collision with a stationary particle which has twice its mass. During the impact :-

A particle moving with kinetic energy = 3J makes an elastic head-on collision with a stationary particle which has twice its mass. During the impact :-

A particle moving with kinetic energy=3 J makes an elastic head-on collision with a stationary particle which has twice its mass. During the impact:

A particle moving with kinetic energy = 3J makes an elastic head-on collision with a stationary particle which has twice its mass. During the impact :-

A particle of charge q mass m and energy E has de-Broglie wave length lambda .For a particle of charge 2q mass 2m and energy 2E the de-Broglie wavelength is

A particle of charge q, mass m and energy E has de-Broglie wavelength lambda . For a particle of charge 2q, mass 2m and energy 2E, the de-Broglie wavelength is