The radius of curvature of each type of biconcave lens, made of glass of refractive index 1.5 is 30cm . Calculate the focal length of lens in the airs?
![SOLVED: Figure (a) shows a lens with radius of curvature R lying on a flat glass plate and illuminated from above by light with wavelength A. Figure (b) photograph taken from above SOLVED: Figure (a) shows a lens with radius of curvature R lying on a flat glass plate and illuminated from above by light with wavelength A. Figure (b) photograph taken from above](https://cdn.numerade.com/ask_images/f7f6e4a9c65d4f9f86da7de24c5bb8ac.jpg)
SOLVED: Figure (a) shows a lens with radius of curvature R lying on a flat glass plate and illuminated from above by light with wavelength A. Figure (b) photograph taken from above
![SOLVED: A thin converging lens (radii of curvature 9.00 cm and 11.0 cm, and focal points F1 and Fz) is placed 20.0 cm in front of a concave spherical mirror with the SOLVED: A thin converging lens (radii of curvature 9.00 cm and 11.0 cm, and focal points F1 and Fz) is placed 20.0 cm in front of a concave spherical mirror with the](https://cdn.numerade.com/ask_images/aa7f2e206f404340a8e5afd5a232913b.jpg)
SOLVED: A thin converging lens (radii of curvature 9.00 cm and 11.0 cm, and focal points F1 and Fz) is placed 20.0 cm in front of a concave spherical mirror with the
![A biconvex lens has focal length `(2)/(3)` times the radius of curvature of either surface. - YouTube A biconvex lens has focal length `(2)/(3)` times the radius of curvature of either surface. - YouTube](https://i.ytimg.com/vi/-bOEAi0mrIM/maxresdefault.jpg)
A biconvex lens has focal length `(2)/(3)` times the radius of curvature of either surface. - YouTube
![Schematic diagram to determine the radius of lens curvature for the... | Download Scientific Diagram Schematic diagram to determine the radius of lens curvature for the... | Download Scientific Diagram](https://www.researchgate.net/publication/306008402/figure/fig2/AS:403626225881089@1473243399614/Schematic-diagram-to-determine-the-radius-of-lens-curvature-for-the-proposed_Q640.jpg)
Schematic diagram to determine the radius of lens curvature for the... | Download Scientific Diagram
![Focal length, explained by RP Photonics Encyclopedia; focal distance, dioptric power, curved mirror, lens equation, microscope, photographic objective, focus, beam radius Focal length, explained by RP Photonics Encyclopedia; focal distance, dioptric power, curved mirror, lens equation, microscope, photographic objective, focus, beam radius](https://www.rp-photonics.com/img/focal_length.png)