Q. In terms of Bohr radius $a_{o},$ the radius of the second Bohr orbit of a hydrogen atoms is given by
A) $4\ a_{o}$
B) $8\ a_{o}$
C) $\sqrt{2}\ a_{o}$
D) $2\ a_{o}$
Explanation
(a) As $r \propto n^{2},$ therefore, radius of 2nd Bohr’s orbit $= 4a_{0}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.