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10th Class Science Human Eye and Colourful World Question Bank Light and Human Eye

  • question_answer
    A pencil of 5 cm long is placed at a distance of 12 cm from a convex lens. Assuming it to be perpendicular to the principal axis, calculate the size of the image formed if the focal length of the lens is 8 cm.

    A) 20 cm              

    B) 15 cm

    C) 10 cm              

    D) 12 cm

    E) None of these

    Correct Answer: B

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