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WB JEE Medical WB JEE Medical Solved Paper-2006

  • question_answer
    In a pond of water, a flame is held 2 m above the surface of water. A fish is at depth of 4 m from water surface. Refractive index of warer  is \[\frac{4}{3}.\] The apparent height of the flame from the  eyes of fish is :

    A)  5.5 m                                   

    B)  6 m

    C)  \[\frac{8}{3}m\]                              

    D)  \[\frac{20}{3}m\]

    Correct Answer: D

    Solution :

                     Apparent height of flame above water surface, \[h=\mu h=\frac{4}{3}\times 2=\frac{8}{3}m\] Therefore, apparent height of the flame from the eyes of fish \[=d+h=4+\frac{8}{3}=\frac{20}{3}m\]


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