The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom (both in ground state) is

Options

A. 1
B. 8
C. 4
D. 16

Answer

B

Explanation

`a = (v^2)/( r) therefore a prop ((z)^2)/((1//z)` or
`therefore a prop z^3 therefore (a_1)/(a_2) =((2)/(1))^3=8`