फोकस दूरी तथा वक्रता त्रिज्या में संबंध (relation between to focal length and radius of curvature) 

#StudyTime
#SmartLearning
#QuickLearn
#DailyLearning
#LearnEveryday
#LearningMadeEasy
#StudyShorts
#EduShorts
Welcome to my RU-vid channel (ewss) education with Satendra sir
Aapko hamare RU-vid channel per education video milenge yadi aapko hamare video lecture pasand aate Hain to aap hamare channel ko subscribe Karen like Karen video ko comment Karen share Karen thank u so Much
Thanks For your support 🤩🤩🤩🥰🥰🥰🥰😍😍😍