Q. The order of the size of nucleus and Bohr radius of an atom respectively are
A) $10^{- 14}m,\ 10^{- 10}m$
B) $10^{- 10}m,\ 10^{- 8}m$
C) $10^{- 20}m,\ 10^{- 16}m$
D) $10^{- 8}m,\ 10^{- 6}m$
Explanation
(a) Diameter of nucleus is of the order of $10^{- 14}m$ and radius of first Bohr orbit of hydrogen atom $r = 0.53 \times 10^{- 10}m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.