An e- , a doubly ionized. He ion (He2+) and a proton are having the same K.E. The relation between their respective De- Broglie wavelength
A photoelectric effect experiment, the graph stopping potential V versus reciprocal of wavelength obtained is shown in the figure. As the intensity of incident radiation is increased:
A particle of mass collides with a hydrogen atom at rest. Soon after the collision the particle comes to rest, and the atom recoils and goes to its first excited state. The initial kinetic energy of the particle (in eV) is The value of is :
(Given the mass of the hydrogen atom to be )______.