NEET Physics Nuclear Physics And Radioactivity NEET PYQ-Nuclear Physics

  • question_answer
    The volume occupied by an atom is greater than the volume of the nucleus by factor of about:      [AIPMT 2003]

    A)  \[{{10}^{10}}\]         

    B)       \[{{10}^{15}}\]                    

    C)  \[{{10}^{1}}\]                                   

    D)  \[{{10}^{5}}\]

    Correct Answer: B

    Solution :

    Radius of atom \[\approx \,\,{{10}^{-10}}\,m\]
    Radius of nucleus \[\approx \,\,{{10}^{-15}}\,m\]
    Ratio of volume of atom to volume of nucleus
       \[=\frac{\text{volume}\,\text{of}\,\text{atom}}{\text{volume}\,\text{of}\,\text{nucleus}}\]
       \[=\frac{\frac{4}{3}\pi r_{1}^{3}}{\frac{4}{3}\pi r_{2}^{3}}\]
       \[={{\left( \frac{{{10}^{-10}}}{{{10}^{-15}}} \right)}^{3}}={{10}^{15}}\]


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