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10th Class Science Sample Paper Science Olympiad Model Test Paper-7

  • question_answer
    A person needs a lens of power \[-5.5\]dioptres for correcting his distant vision. Find the focal length of the lens required for correcting his distant vision?

    A) \[-\,\,6cm\]

    B) \[-\,\,12cm\]

    C) \[-\,\,4cm\]

    D) \[-\,\,2cm\]

    E) None of these

    Correct Answer: E

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