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Pradeep Asked a Question
November 10, 2020 11:44 ampts 30 pts
when a lens of focal length f is cut into two equal halves perpendicular to principle axis then each part of the lens has a focal length 2f??how???
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  • Pradeep
    parallel to axis then focal length remains unchange
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  • Pradeep
    oh fine
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  • Prashant kumar thankyou
    Answer
    • cropped5323324842034871310.jpg
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