Nuclei Physics NCERT Exemplar Solutions Class 12th Chapter Thirteen Class 12th Physics

Mass numbers of two nuclei are in the ratio of 4 : 3. Their nuclear densities will be in the ratio of

Option 1 - <p> 4 : 3</p>

Option 2 - <p><span class="mathml" contenteditable="false"> <math> <mrow> <msup> <mrow> <mrow> <mo>(</mo> <mrow> <mfrac> <mrow> <mn>3</mn> </mrow> <mrow> <mn>4</mn> </mrow> </mfrac> </mrow> <mo>)</mo> </mrow> </mrow> <mrow> <mfrac> <mrow> <mn>1</mn> </mrow> <mrow> <mn>3</mn> </mrow> </mfrac> </mrow> </msup> </mrow> </math> </span></p>

Option 3 - <p> 1 : 1</p>

Option 4 - <p><span class="mathml" contenteditable="false"> <math> <mrow> <msup> <mrow> <mrow> <mo>(</mo> <mrow> <mfrac> <mrow> <mn>4</mn> </mrow> <mrow> <mn>3</mn> </mrow> </mfrac> </mrow> <mo>)</mo> </mrow> </mrow> <mrow> <mfrac> <mrow> <mn>1</mn> </mrow> <mrow> <mn>3</mn> </mrow> </mfrac> </mrow> </msup> </mrow> </math> </span></p>

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Alok Kumar Singh | Contributor-Level 10

8 months ago

Correct Option - 3

Detailed Solution:

$R = R ? A^{1 / 3}$

$δ = \frac{m a s s}{v o l u m e} = \frac{m A}{\frac{4}{3} π R^{3}} = \frac{m A}{4 / 3 π R_{0}^{3} A}$

$\Rightarrow$ Density is independent of mass number

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Physics NCERT Exemplar Solutions Class 12th Chapter Thirteen 2025

Physics NCERT Exemplar Solutions Class 12th Chapter Thirteen 2025

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