A convex-concave diverging lens is made of glass of refractive index 1.5 and focal length 24 cm. radius of curvature for one surface is double that of the other. Then radii of curvature for the two surfaces are (in cm )

A convexo-concave convergent lens is made of glass of refractive index 1.5 and focal length 24 cm. Radius of curvature for one surface is double than that of the other. Then,radii of curvature for the two surfaces are (in cm)

A convexo-concave convergent lens is made of glass of refractive index 1.5 and focal length 24 cm. Radius of curvature for one surface is double than that of the other. Then,radii of curvature for the two surfaces are (in cm)

A double convex lens is made of glass of refractive index 1.5. If its focal length is 30 cm, then radius of curvature of each of its curved surface is

A double convex lens of focal length 6 cm is made of glass of refractive index 1.5. The radius of curvature of one surface is double that of the other surface. The value of smaller radius of curvature is

A plano-concave lens is made of glass of refractive index 1.5 an the radius of curvature of its curved surface is 50 cm. What is the power of the lens?

A double convex lens of f = 6 cm is made of glass of refractive index 1.5. The radius of curvature of the surface which is double that of other surface will be

A plano convex lens is made of glass of refractive index 1.5. The radius of curvature of its convex surface is R. Its focal length is