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JEE Main & Advanced Physics Ray Optics Question Bank Refraction of Light at Plane Surfaces

  • question_answer
    A fish at a depth of 12 cm in water is viewed by an observer on the bank of a lake. To what height the image of the fish is raised.                                                                           [MP PET  2005]

    A)            9 cm                                         

    B)            12 cm

    C)            3.8 cm                                     

    D)            3 cm

    Correct Answer: D

    Solution :

               Apparent rise \[=d\left( 1-\frac{1}{_{a}{{\mu }_{w}}} \right)\]\[=12\times \left( 1-\frac{3}{4} \right)\]= 3 cm.


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