A photon of energy 12.09 eV is completel...

A photon of energy `12.09 eV` is completely absorbed by a hydrogen atom initially in the ground state. The quantum number of excited state is

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A: If a beam of photons of energy 10.0 eV each is incident on a sample of hydrogen gas containing all atoms in the ground state, then the beam of the photons is completely transmitted through the gas without absorption. R: The minimum energy required by an electron to make a transition to an excited state is 10.2 eV .

A photon of energy 12.09 eV is absorbed by an electron in ground state of a hydrogen atoms. What will be the energy level of electron ? The energy of electron in the ground state of hydrogen atom is -13.6 eV

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(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 .

A hydrogen sample is prepored in a particular state A photon of energy 2.55eV gel obserbed into the sample to take some of the electron ti a farther excited state B find the quantum numbers of the state A and B

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