Hellow guys, Welcome to my website, and you are watching सिद्ध करें की F=R/2 | Prove that F=R/2| फोकस दुरी और वक्रता त्रिज्या में सम्बन्ध | अवतल एवं उत्तल |. and this vIdeo is uploaded by Disha Online Classes at 2024-05-08T07:25:23-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.