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Bihar Board Class 12 · Physics · 13 past questions

Topic Atomic structure and nucleus 1 Bohr model: postulates and limitations 1 Spectra and lasers 1 Bohr orbits: radius and angular momentum 0 Energy of the electron in hydrogen 0 Hydrogen spectral series 0

Level Easy 1 Moderate 0

Year 2026 1 2025 0 2023 1 2021 0 2019 0 2018 0 2017 0

1 of 13 · show all

Q6 2023 Set F

LASER action needs