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NEET Sample Paper NEET Sample Test Paper-9

  • question_answer
    A microscope is focused on a needle lying is am empty tank. Now, the tank is filled with benzene to a height 120 mm. The microscope is moved 40mm to focus the needle again the refractive index of benzene is:

    A)  \[1.5\]                         

    B)  \[2.5\]

    C)  \[3.0\]                         

    D)  \[4.5\]

    Correct Answer: A

    Solution :

    As \[\mu =\frac{\text{Real depth}}{\text{Apparent depth}}=\frac{120}{120-40}=1.5\]


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