Physics- Atoms

The simple Bohr model cannot be directly applied to calculate the energy levels of an atom with many electrons. This is because [NCERT Exemplar]

For the ground state, the electron in the H-atom has an angular momentum = h, according to the simple Bohr model. Angular momentum is a vector and hence there will be infinitely many orbits with the vector pointing in all possible directions. In actuality, this is not true

Energy of an electron in the second orbit of hydrogen atom is E and the energy of electron in 3rd orbit of He will be

Which of the relation is correct between time period and number of orbits while an electron is resolving in an orbit?

The transition from the state n = 5 to n = 1 in a hydrogen atom results in UV radiation. Infrared radiation will be obtained in the transition

The hydrogen atom can give spectral lines in the Lyman, Balmer and Paschen series. Which of the following statement is correct?

In a hydrogen atom, the radius of nth Bohr orbit is rn. The graph between log(rn/r1) and log n will be

If the radius of inner most electronic orbit of a hydrogen atom is 5.3 * 10~n m, then the radii of n = 2 orbits is

The Bohr model of atoms