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  3. 10th Class
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10th Class Science Sample Paper Science Olympiad Model Test Paper-1

  • question_answer
    An object is placed at a distance of 2 cm from a lens which forms an erect image exactly one- fourth the size of an object. Determine the focal length of the lens.

    A) \[-\,\,23.5\,\,cm\]

    B) \[-\,\,25.7\,\,cm\]

    C) \[-\,\,56.7\,\,cm\]

    D) \[-\,\,64.7\,\,cm\]

    E) None of these

    Correct Answer: E

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