1.
In the Bohr model of hydrogen atom, the lowest orbit (nearest to nucleus) corresponds to-
3.
The number of de-Broglie wavelengths contained in the second Bohr orbit of Hydrogen atom is-
4.
When an alpha particle of mass m moving with a velocity v bombards on heavy nucleus of charge Ze, its distance of closest approach from the nucleus depends on m as-
5.
Specify the transition of electron in the wavelength of the line in the Bohr model of hydrogen atom which gives rise to the spectral line of highest wavelength.
8.
The graph of the total number of alpha particles scattered at different angles in a given interval of time for alpha particle scattering in the Geiger-Marsden experiment is given by-
9.
The potential energy of an electron in the second excited state in hydrogen atom is-