Which of the following products, in a hydrogen atom , are independent of the principal quantum number `n` ? The symbels have their usual meanings.

Options

A. `omega^(2) r`
B. `(E)/(v^(2))`
C. `v^(2) r`
D. `(E)/( c)`

Answer

B, C

Explanation

`v prop (1)/(n), E prop (1)/(n^(2)), and r prop n^(2)`