Question

The radius of gold nucleus is 41.3fermi. Express its volume in m^3.

(a) 41.3×10^-15 m^3

(b) 2.95×10^-40 m^3

(c) 4.19 m^3

(d) 29.33 m^3

I had been asked this question at a job interview.

This interesting question is from Laws Governing Gravity topic in section Laws of Motion of Engineering Physics I

Answer 1

The correct answer is (b) 2.95×10^-40 m^3

Explanation: Radius = 41.3 Fermi = 41.3×10^-15m

V = 4/3 πr^3 = 2.95×10^-40 m^3.