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CBSE Class 12 · 2009 · Modern PhysicsVery Short Answer

Two nuclei have mass numbers in the ratio

1 : 2

. What is the ratio of their nuclear densities?

Answer: $1 : 1$

Solution

Nuclear density

ρ = \frac{m A}{\frac{4}{3} π R _{0}^{3} A} = \frac{m}{\frac{4}{3} π R _{0}^{3}}

is independent of the mass number

A

.
Hence both nuclei have the same density.

ρ_{1} : ρ_{2} = 1 : 1

CBSE Class 12 Board · 2009 · Subjective

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