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JEE Main & Advanced Physics Ray Optics Question Bank Microscope and Telescope

  • question_answer
    The resolving power of an astronomical telescope is 0.2 seconds. If the central half portion of the objective lens is covered, the resolving power will be        [MP PMT 2004]

    A)            0.1 sec                                     

    B)            0.2 sec

    C)            1.0 sec                                     

    D)            0.6 sec

    Correct Answer: A

    Solution :

               Resolving power \[=\frac{a}{1.22\,\lambda }\]


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