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sir, In the optics refraction through spherical surfaces video, in the numerical you have taken v as -20cm but according to sign convensions v and R are positive. can you please explain why you took so..

npcyh , 9 Years ago
Grade 12th pass
anser 1 Answers
Saurabh Koranglekar
Dear student

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Regards
Last Activity: 6 Years ago
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