CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2001

  • question_answer
    If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope:

    A)  decreases         

    B)  increases

    C)  gets halved    

    D)         remains unchanged

    E)  becomes 1/4 of the original value

    Correct Answer: B

    Solution :

    Resolving power\[=\frac{2\mu \,\sin \theta }{1.22\,\lambda }\] Since,\[{{\lambda }_{R}}>{{\lambda }_{B}}\]hence, resolving power increases.


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