Browse Questions

# The radii of two nuclei with atomic ratio of no .1 & 27 is ?

$(a)\;3\qquad(b)\;\large\frac{1}{3}\qquad(c)\;2\qquad(d)\;\large\frac{1}{2}$

Answer : (b) $\;\large\frac{1}{3}$
Explanation :
Since $\;\large\frac{R_{1}}{R_{2}}= [\large\frac{A_{1}}{A_{2}}]^{\large\frac{1}{3}}$
$=[\large\frac{1}{27}]^{\large\frac{1}{3}}$
$=\large\frac{1}{3}\;.$