A nucleus is found to have a radius of

PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei

Problem

5.0\,\text{fm}

. Using

R_0 = 1.2\,\text{fm}

and

1\,\text{u} = 1.66\times10^{-27}\,\text{kg}

, which pair of estimates for its mass number

A

and nuclear mass

m

is the most reasonable? (a)

A \approx 125,\; m \approx 2.1\times10^{-25}\,\text{kg}

(b)

A \approx 46,\; m \approx 7.6\times10^{-26}\,\text{kg}

(c)

A \approx 72,\; m \approx 1.2\times10^{-25}\,\text{kg}

(d)

A \approx 216,\; m \approx 3.6\times10^{-25}\,\text{kg}