NEET Physics Nuclei Questions Solved

In the Bohr model of the hydrogen atom, let R, v and E represent the radius of the orbit, the speed of electron and the total energy of the electron respectively. Which of the following quantity is proportional to the quantum number n

(a) R/E               (b) E/v
(c) RE                (d) vR

(d) Rydberg constant R=ε0n2h2πmZe2
Velocity v=Ze22ε0nh and energy E=-mZ2e48ε02n2h2
Now, it is clear from above expressions R.v ∝ n

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