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What is focal length? Ans half …

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What is focal length? Ans half of radius of curvature is focal length Or Length of focus from pole is called focal length. Is both answers are correct? Please answer me

    • Posted by Mahi Khan 5 years, 10 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Genius Girl 5 years, 10 months ago

    2nd one is absolutely correct but 1st is correct in case of mirror only.

    1Thank You

    Suraj Kumar 5 years, 10 months ago

    Yes, both answers are correct

    1Thank You

    ANSWER
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