Two thin lenses of focal length f1 and f2 are in contact and coaxial. The power of the combination is .
![Derive an expression for the focal length of the combination of two thin lenses in Contact. wrong answer - Brainly.in Derive an expression for the focal length of the combination of two thin lenses in Contact. wrong answer - Brainly.in](https://hi-static.z-dn.net/files/d6d/8c662c49f550ad1e719ee05937972a6d.jpg)
Derive an expression for the focal length of the combination of two thin lenses in Contact. wrong answer - Brainly.in
![Derivation of Equivalent Focal Length of Combination of two lens separated by distance #kamaldheerya - YouTube Derivation of Equivalent Focal Length of Combination of two lens separated by distance #kamaldheerya - YouTube](https://i.ytimg.com/vi/JTOSQLL93pY/maxresdefault.jpg)
Derivation of Equivalent Focal Length of Combination of two lens separated by distance #kamaldheerya - YouTube
Derive the expression for effective focal length of two thin lenses kept in contact. - Sarthaks eConnect | Largest Online Education Community
![Consider two thin lenses, one of focal length f1 and the other of focal length f2, placed in contact with each other. Apply the thin lens equation to each of these lenses Consider two thin lenses, one of focal length f1 and the other of focal length f2, placed in contact with each other. Apply the thin lens equation to each of these lenses](https://homework.study.com/cimages/multimages/16/capture5473864438025005440.png)
Consider two thin lenses, one of focal length f1 and the other of focal length f2, placed in contact with each other. Apply the thin lens equation to each of these lenses
![When Two Thin Lenses Are Kept in Contact, Prove that Their Combined Or Effective Focal Length F is Given by : 1/F = 1/F_1 + 1/F_2 Where the Terms Have Their Usual When Two Thin Lenses Are Kept in Contact, Prove that Their Combined Or Effective Focal Length F is Given by : 1/F = 1/F_1 + 1/F_2 Where the Terms Have Their Usual](https://www.shaalaa.com/images/_4:965f1758e727437d877abd7c8627f6ab.png)