Chapter 29 – Atomic Structure

If the wavelength of photon emitted due to transition of electron from third orbit to first orbit in a hydrogen atom is λ then the wavelength of photon emitted due to transition of electron from fourth orbit to second orbit will be The speed of electron in the second orbit of Be^3+ ion will be [...]

An atom emits a spectral line of wavelength λ when an electron makes a transition between levels of energy E1 and E2. Which expression correctly relates λ,E1 and E2 ? An atom emits a spectral line of wavelength λ when an electron makes a transition between levels of energy E1 and E2. Which expression correctly [...]

The frequency of emission line for any transition in positronium atom (consisting of a positron and an electron) is x times the frequency of the corresponding line in the case of H atom , where x is The frequency of emission line for any transition in positronium atom (consisting of a positron and an electron) [...]

In the above figure, E1 to E6 represent some of the energy levels of an electron in the hydrogen atom. Which one of the following transitions produces a photon of wavelength in the ultra-violet region of the electromagnetic spectrum ? In the above figure The speed of electron in the second orbit of Be^3+ ion [...]

Which of the following parameters are same for all hydrogen like atoms and ions in their ground state? Which of the following parameters are same for all hydrogen like atoms and ions in their ground state? June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 29 - Atomic Structure ,

If λ1 and λ2 and are the wavelengths of the first members of the Lyman and Paschen series respectively, then λ 1: λ 2 is If λ1 and λ2 and are the wavelengths of the first members of the Lyman and Paschen series respectively then λ 1: λ 2 is June 5, 2021 Category: Cengage [...]

As the quantum number increases, the difference of energy between consecutive energy levels As the quantum number increases the difference of energy between consecutive energy levels June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 29 - Atomic Structure ,

If R is the Rydberg’s constant for hydrogen then the wave number of the first line in the Lyman series is If R is the Rydberg's constant for hydrogen then the wave number of the first line in the Lyman series is June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]

When a hydrogen atom emits a photon in going from n=5 to n=1 state, its recoil speed is almost its recoil speed is almost When a hydrogen atom emits a photon in going from n=5 to n=1 state June 5, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 29 - Atomic Structure [...]

A sample of hydrogen is bombarded by electrons. Through what potential difference should the electrons be accelerated so that third line of Lyman series be emitted? A sample of hydrogen is bombarded by electrons. Through what potential difference should the electrons be accelerated so that third line of Lyman series be emitted? June 5, 2021 [...]