Q. A nucleus x^{235} splits into two nuclei having the mass numbers in the ratio 2 : 1. The ratio of the radii of those two nuclei is

(a) 2 : 1

(b) 1 : 2

(c) 2^{1/3} : 1

(d) 1 : 2^{1/3}

Ans:(c)

Sol: R ∝ A^{1/3}

R_{1}/ R_{2} = (2/1)^{1/3}

= 2^{1/3} : 1