लेंस की क्षमता का SI मात्रक � – McqOptions

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1.	लेंस की क्षमता का SI मात्रक क्या है ?
A.	डाइऑपटर
B.	फ़ॉक्स
C.	अवतल
D.	आवेश
Answer» B. फ़ॉक्स

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