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CBSE Class 12 · Physics · 17 past questions

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1. Q4 2025

   The energy of an electron in a hydrogen atom in ground state is $-13.6$ eV. Its energy in an orbit…

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2. Q6 2025

   Assertion (A) : The potential energy of an electron revolving in any stationary orbit in a hydrogen atom is…

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3. 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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4. Q14 2023

   The radius of the n$^{th}$ orbit in Bohr model of hydrogen atom is proportional to…

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