गोलीय दपण॔ का ज्यामितीय के – McqOptions

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1.	गोलीय दपण॔ का ज्यामितीय केंद्र इसका क्या कहलाता है ?
A.	प्रकाशिक केन्द्र
B.	कैडारके
C.	ध्रु्व
D.	प्वाज
Answer» D. प्वाज

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