PhysicsNEET 2023Rutherford and Bohr models

Atoms

The radius of the innermost orbit of the hydrogen atom is $5.3 \times 1 0^{- 11}$ m. What is the radius of the third allowed orbit of the hydrogen atom?

A.0.53 Å
B.1.06 Å
C.1.59 Å
D.4.77 Å✓

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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Last revised 7 Sept 2026. Found a mistake? Tell us — corrections are the fastest thing we act on.

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