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JEE Main & Advanced Physics Ray Optics Question Bank Numerical Value Type Questions - Refraction at Curved Surface

  • question_answer
    A convex lens d A of focal length 20 cm and a concave lens B of focal length 5 cm are kept along the same axis with a distance d between them. If a parallel beam of light falling on A leaves B as a parallel beam, then d is equal to, (in cm)

    Answer:

    15.00


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