The electrons in a `H`- atom kept at rest , jumps from the mth shell to the nth shell `(m gt n)`. Suppose instead of emitting electromagnetic wave, the energy released is converted into kinetic energy of the atom. Assuming Bohr's model and conservation of angular momentum are valid. Now , answer the following questions:
If the above comprehension be true , ehat is not valid here?

Options

A. `F = ma`
B. `tau = 1 alpha`
C. `F = dp//dt`
D. All of them

Answer

D

Explanation

Since no external force and tarque act on the atom , still it gets an acceleration and angular acceleration. So, none is true.