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

  • question_answer
    The separation between two microscopic particles is measured \[{{P}_{A}}\] and \[{{P}_{B}}\] by two different lights of wavelength 2000 Å and 3000 Å respectively, then [AIEEE 2002]

    A)            \[{{P}_{A}}>{{P}_{B}}\]    

    B)            \[{{P}_{A}}<{{P}_{B}}\]

    C)            \[{{P}_{A}}<3/2{{P}_{B}}\]     

    D)            \[{{P}_{A}}={{P}_{B}}\]

    Correct Answer: B

    Solution :

                       Resolving limit (minimum separation)\[\propto \lambda \]            \[\Rightarrow \frac{{{P}_{A}}}{{{P}_{B}}}=\frac{2000}{3000}\Rightarrow {{P}_{A}}<{{P}_{B}}\]


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