Q. एक लेंस का फोक्सांतर 25 सेमी

(A) +4D
(B) -4D
(C) +2D
(D) -2D

✅ Correct Answer: (A) +4D

Published by Gopal Sharma ⭐ 38.32K Points at 25-May-2024 04:11 pm in Physics

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