Atoms Test - 22...

 When electron remains between orbits, its momentum is :

Number of spectral lines in hydrogen atom is

When electron changes its orbit from outer to inner energy is :

When an electron jumps from its orbit to another orbit, energy is :

Orbits in which electrons move according to Bohr are :

In a laser tube, all the photons

According to the quantum theory of light, the energy of light is carried in discrete units called

According to Bohr's model of hydrogen atom, relation between principal quantum number n and radius of stable orbit is 

In an atom an electron excites to the fourth orbit.When it jumps back to the energy level one a spectrum is formed. Total number of spectral lines in this spectrum would be

When an alpha particle is emitted from a radioactive source.