6 JEE Main 2020 Atomic Physics previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Atomic Physics chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Atomic Physics chapter hub.
The energy required to ionise a hydrogen like ion in its ground state is 9 Rydbergs. What is the wavelength of the radi…
The time period of revolution of electron in its ground state orbit in a hydrogen atom is 1.6 × 10 - 16 s . The fr…
The graph which depicts the results of Rutherford gold foil experiment with α -particles is: θ : Scattering a…
In a hydrogen atom the electron makes a transition from n   +   1 th level to the n th level. If n > >…
The first member of the Balmer series of hydrogen atom has a wavelength of 6561   A ∘ . The wavelength of th…
In the line spectra of hydrogen atom, difference between the largest and the shortest wavelengths of the Lyman series i…