r₂:r₁ = 4:1.
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JEE Advanced 2022 — Physics Modern Physics
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mcq
2022
Official previous-year question
Verified 30 May 2026.
Question
In hydrogen atom, the ratio of radii of 2nd and 1st orbit is
Options
- A2:1
- B4:1
- C1:2
- D1:4
Solution
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