Chapter 30 – Atoms

If the de Broglie wavelength of a particle of mass m is 100 times its velocity, then its value in terms of its mass (m) and Planck’s constant (h) is If the de Broglie wavelength of a particle of mass m is 100 times its velocity then its value in terms of its mass (m) [...]

The degeneracy of hydrogen atom that has the energy equal to −RH/9 (RH = Rydberg constant ). The degeneracy of hydrogen atom that has the energy equal to −RH/9 (RH = Rydberg constant ). November 9, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 30 - [...]

The ratio of energy of the electron in ground state of hydrogen to the electron in first excited state of Be^3+ is The ratio of energy of the electron in ground state of hydrogen to the electron in first excited state of Be^3+ is November 9, 2020 Category: AIIMS Last 24 Years Solved 1996 - [...]

Photo electrons are liberated by ultraviolet light of wavelength 3000Å from a metalic surface for which the photoelectric threshold wavelength is 4000Å. Calculate the de Broglie wavelength of electrons emitted with maximum kinetic energy is 1. What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition n=4 to n=2 of [...]

The electrons are filled in orbitals containing following quantum numbers n and l. The order of increasing energy is The electrons are filled in orbitals containing following quantum numbers n and l. The order of increasing energy is November 9, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions [...]

1. What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition, n=4 to n=2 of He + spectrum? 1. What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition n=4 to n=2 of He + spectrum? November 9, 2020 Category: AIIMS Last 24 Years Solved [...]