Atoms

CBSE Class 12 · Physics · 17 past questions

6 of 17 · show all

1. Q2 2026

   In Bohr model of hydrogen atom, the electron makes a transition from n = 5 to n = 1 state. As a result, a…

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2. Q9 2024

   The transition of electron that gives rise to the formation of the second spectral line of the Balmer series…

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3. Q10 2024

   Energy levels A, B and C of an atom correspond to increasing values of energy i.e. $E_A < E_B < E_C$. Let…

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4. Q12 2023

   A hydrogen atom makes a transition from n = 5 to n = 1 orbit. The wavelength of photon emitted is $\lambda$.…

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5. Q13 2023

   The ratio of maximum frequency and minimum frequency of light emitted in Balmer series of hydrogen spectrum…

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6. Q15 2023

   Hydrogen atom initially in the ground state, absorbs a photon which excites it to n = 5 level. The wavelength…

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