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    5. Focal length of a concave lens with power –2 D:

    Question

    Focal length of a concave lens with power –2

    D:
    A 100 cm Correct Answer Incorrect Answer
    B –100 cm Correct Answer Incorrect Answer
    C –50 cm Correct Answer Incorrect Answer
    D 50 cm Correct Answer Incorrect Answer

    Solution

    f = 100/P = 100/-2 = -50 cm f = 100/P = 100/-2 = -50 cm

    Practice Next
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    Relevant for Exams:

    • AAI ATC JE

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