JEE Main & Advanced Physics Ray Optics Question Bank Refraction at Curved Surface

  • question_answer
    The chromatic Aberration in lenses becomes due to [CPMT 2003]

    A)            Disimilarity of main axis of rays

    B)            Disimilarity of radii of curvature

    C)            Variation of focal length of lenses with wavelength

    D)            None of these

    Correct Answer: C

    Solution :

               \[f\propto \frac{1}{\mu -1}\] and \[\mu \propto \frac{1}{\lambda }.\]


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