JEE Main & Advanced Physics Ray Optics Question Bank Graphical Questions

  • question_answer
    For a small angled prism, angle of prism A, the angle of minimum deviation (d) varies with the refractive index of the prism as shown in the graph

    A)            Point P corresponds to m = 1

    B)            Slope of the line PQ = A/2

    C)            Slope = A

    D)            None of the above statements is true

    Correct Answer: C

    Solution :

     At P, d = 0 \[=A(\mu -1)\] Þ \[\mu =1.\] Also \[{{\delta }_{m}}=(\mu -1)A=A{{\mu }_{m}}-A\] Comparing it with y = mx + c Slope of the line = m = A


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