Question 23M.1A.HL.TZ1.38

In the Bohr model for hydrogen, the radius of the electron orbit in the n = 2 state is four times that of the radius in the n = 1 state.

What is $\frac{\mathrm{speed} \mathrm{of} \mathrm{the} \mathrm{electron} \mathrm{in} \mathrm{the} \mathrm{n} = 2 \mathrm{state}}{\mathrm{speed} \mathrm{of} \mathrm{the} \mathrm{electron} \mathrm{in} \mathrm{the} \mathrm{n} =1 \mathrm{state}}$?

A.  $\frac{1}{4}$

B.  $\frac{1}{2}$

C.  2

D.  4