JEE Main & Advanced Physics Elasticity Question Bank Graphical Questions

  • question_answer
    The graph shown was obtained from experimental measurements of the period of oscillations T for different masses M placed in the scale pan on the lower end of the spring balance. The most likely reason for the line not passing through the origin is that the    [NCERT 1978]

    A) Spring did not obey Hooke's Law

    B)             Amplitude of the oscillations was too large

    C)             Clock used needed regulating

    D)             Mass of the pan was neglected

    Correct Answer: D

    Solution :

        \[T=2\pi \sqrt{\frac{M}{K}}\]Þ \[{{T}^{2}}\propto M\] If we draw a graph between \[{{T}^{2}}\]and M then it will be straight line. and for M = 0, T2 = 0 i.e. the graph should pass through the origin. but from the it is not reflected it means the mass of pan was neglected.


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