The energy required to excite a hydrogen atom from `n= 1` to `n = 2` energy state 10.2 eV. What is the wavelength of the radiation emitted by the atom when it goes back to Its ground state ?

The energy required to remove an electron in a hydrogen atom from n = 10 state is

The energy ( in eV ) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

The energy (in eV) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

the energy required to excite an electron in hydrogen atom to its first excited state is

Electrons of energy 12.09 eV can excite hydrogen atoms . To which orbit is the electron in the hydrogen atom raisd and what are the wavelengths of the radiations emitted as it dropes back to the ground state?

The energy needed to detach the electron of a hydrogen like ion in ground state is a system(a) what is the wavelength of the radiation emitted when the electron jumps from the first excited state to the ground state? (b) What is the radius of the orbit for this atom?

(a) (i) Find the wavelength of the radiation required to excite thye elctron in Li(++) from the first to the third Bohr orbit. (ii) How many spectal lines are observed in the emission spectrum of the above excited system ? (b) The energy needed to detach the electron of a hydrogen-like ion in ground state in 4 rydberg. (i) What is the wavelength of the radiation emitted when the electron jumps from the first excited state ot the ground state ? (ii) What is the radius of first orbit ? (c ) A hydrogen sample is prepared in a particular excited state A. Photons of energy 2.55 eV get absorbed into the sample to take some electrons to a further excited state B. Find the quantum number of the A and B. (d) A hydrogen atom in a state having a binding energy of 0.85 eV makes transition to a state with excitation energy 10.2 eV. (i) Identify the quantum number n of the upper and the lower energy states. Find lambda .

Calculate the two highest wavelength of the radiation emitted when hydrogen atoms make transition from higher state to n = 2