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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 18 - Refraction at Spherical Surfaces > In figure, an air lens of radius of curvature of each surface equal to 10cm ( R1 = R2 = 10 cm)is cut into a cylinder of glass of refractive index 1.5. The focal length and the nature of the lens is

In figure, an air lens of radius of curvature of each surface equal to 10cm ( R1 = R2 = 10 cm)is cut into a cylinder of glass of refractive index 1.5. The focal length and the nature of the lens is

an air lens of radius of curvature of each surface equal to 10cm ( R1 = R2 = 10 cm)is cut into a cylinder of glass of refractive index 1.5. The focal length and the nature of the lens is In figure