focal length of a lens the perpendicular distance between the focal plane and the plane of the lens itself when focused at infinity – Meaning and Explanation

Part of speech : Phrase

Urdu Meaning (اردو معنی)

طول ماسکہ ، آپٹیکل مرکزیا قطب سے کروی آئینے یا عدسے کے بڑے فوکس تک فاصلہ ۔

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