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JIPMER Jipmer Medical Solved Paper-1996

  • question_answer
    Two lenses of power +1.5 diopter and +1.0 diopter are placed in contact, the effective power of the combination is:

    A)  2.5 diopter          

    B)         \[\frac{3}{5}\]diopter   

    C)         0.5 diopter        

    D)         \[\frac{5}{3}\]diopter

    Correct Answer: A

    Solution :

    Here      \[{{D}_{1}}=1.5D\] \[{{D}_{2}}=1.0D\] Hence, effective power of combination is \[D={{D}_{1}}+{{D}_{2}}=1.5+1.0=2.5D\]


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