PG entrance exam CUET PG 2025 Mock Test Physics Dual Nature: Photon and Matter Waves The Hydrogen Atom
The radius of the innermost orbit of hydrogen atom is 5.3 × 10-11 m. The radii of n = 2 orbit is:
1
1.06 × 10-10 m
2
2.12 × 10-10 m
3
10.6 × 10-10 m
4
21.2 × 10-10 m