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NEET Sample Paper NEET Sample Test Paper-58

  • question_answer
    The ratio of area covered by second orbital to the first orbital is:

    A) 1:1                               

    B) 1:16  

    C) 8:1                               

    D) 16:1

    Correct Answer: D

    Solution :

    [d] \[16:1\] \[{{r}_{n}}\propto \,{{n}^{2}}\] \[\therefore \]area covered \[(An)\propto {{n}^{4}}(\therefore \,Area\,=\pi {{r}^{2}})\] \[\therefore \frac{{{A}_{2}}}{{{A}_{1}}}=\frac{{{2}^{4}}}{{{1}^{4}}}=\frac{(In\,sec\,ond\,orbital)}{(In\,first\,orbital)}=\frac{16}{1}\]


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