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

  • question_answer
    The magnifying power of a telescope is 9. When it is adjusted for parallel rays, the distance between the objective and the eye-piece is found to be 20 cm. The focal length of the two lenses are                                   [MP PMT 1986]

    A)            18 cm, 2 cm                           

    B)            11 cm, 9 cm

    C)            10 cm, 10 cm                        

    D)            15 cm, 5 cm

    Correct Answer: A

    Solution :

               Same as Q. No. 58.


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