This video explains the concept of effective focal length when thin lenses are in contact. The concept will be explained through a situation wherein a thin concave lens and a thin convex lens are used to find the effective focal length. The concept will also be explaining the formula for the effective power of a lens combination This video will help you in preparing not only for class 12 but also for JEE 2022 and NEET 2022 The video is presented by Filo, an on-demand tutoring platform that connects students with India’s top 1% tutors in less than 60 seconds. --------------------------------------------------------------------- So students, gear yourself up, clear your concepts and get answers to all your questions with Filo. --------------------------------------------------------------------- Download link: https://findfilo.com/download Go hurry! Download the app now. Best of Luck! Team Filo! #RayOptics #chapter12 #ThinLensesInContact --------------------------------------------------------------------- Subscribe to Filo on YouTube: https://www.youtube.com/channel/UCM2a... --------------------------------------------- Filo on Social Media Twitter: https://twitter.com/findfilo Facebook: https://www.facebook.com/findfilo/ Instagram: https://instagram.com/filoapp