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

  • question_answer
    An achromatic combination of lenses produces [KCET 1993; JIPMER 1997]

    A)            Coloured images                

    B)            Highly enlarged image

    C)            Images in black and white      

    D)            Images unaffected by variation of refractive index with wavelength

    Correct Answer: D

    Solution :

               Since \[f\propto \frac{1}{\mu }\propto \lambda ,\] so voilet colour is focused nearer to the lens.


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