The magnitude of angular momentum, orbit radius and frequency of revolution of elctron in hydrogen atom corresponding to quantum number n are L, r and f respectively. Then accoding to Bohr's theory of hydrogen atom

Options

A. `f r^(2)L` is constant for all orbits
B. `f rL` is constant for all orbits
C. `f^(2)rL` is constant for all orbits
D. `f rL^(2)` is constant for all orbits

Answer

B

Explanation

`L=((nh)/(2pi)), r=(0.53 n^(2)/Z), f prop (Z^(2)/n^(3))`
`(f r L) prop Z` Constant for all orbits.