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NEET Sample Paper NEET Sample Test Paper-68

  • question_answer
    In the experiment, the curve between\[\Delta x\,\,and\,\,\Delta w\,\] is shown as dotted line (a). If we use an another wire of same material, but with double length and double radius. Which of the curve is expected.

    A) 1                                 

    B) 2

    C) 3                                 

    D) 4

    Correct Answer: C

    Solution :

    Initially slope \[=\frac{\Delta x}{\Delta w}=\frac{{{I}_{0}}}{( & \pi r_{0}^{2})({{y}_{0}})}\] in second case (slope) \[=\,\,\,\frac{(2{{l}_{0}})}{\pi {{(2{{r}_{0}})}^{2}}_{{{y}_{0}}}}\,\,=\,\frac{1}{2}\,\frac{{{l}_{0}}}{(\pi r_{0}^{2})\,{{y}_{0}}}\] so slope will be valved.


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