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Manipal Medical Manipal Medical Solved Paper-2002

  • question_answer
    A metal corn is at the bottom of a beaker filled with a liquid of refractive index 4/3 to height of 6 cm. To an observer looking from above the surface of the liquid, coin will appear at a depth of:

    A)  7.5 cm           

    B)  6.75 cm

    C)  4.5 cm           

    D)  1.5 cm

    Correct Answer: D

    Solution :

     Here: Actual depth of liquid \[h=6\text{ }cm\] Refactive index of the liquid\[=\frac{4}{3}\] Using the relation \[\mu =\frac{actual\text{ }depth\,(h)}{apparent\text{ }depth\,(x)}\] Or \[x=h\times \frac{3}{4}=6\times \frac{3}{4}=4.5\,m\] Hence, the coin will appear at a depth of \[=6-4.5=1.5\text{ }cm\]


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