[" A double convext lenit of "+5D" is made at "],[" dass of refractive inder "1.55" with beth the "],[" laces of equal radit of curvature.Find the "],[" value of its radius of ecurvature.Ferse as "]

A double convex lens of + 5 D is made of glass of refractive index 1.5 with both faces of equal radii of curvature. Find the value of curvature.

A double convex lens is made of glass of refractive index 1.55 with both faces of same radius of curvature. Find the radius of curvature required, if focal length is 20 cm .

A double convex lens is made of glass of refractive index 1.55 with both faces of same radius of curvature. Find the radius of curvature required, if focal length is 20 cm .

A double convex lens is made of glass of refractive index 1.55 with both faces of same radius of curvature. Find the radius of curvature required, if focal length is 20 cm .

A double convex lens is made of glass of refractive index 1.55 with both faces of same radius of curvature. Find the radius of curvature required, if focal length is 20 cm .

A double convex lens is made of a glass of refractive index 1.55, with both faces of the same radius of curvature. Find the radius of curvature required, if the focal length is 20 cm.

A biconvex lnes is to be made from glass of refractive index 1.5, with both faces having some radius of curvature. Determine the focal length if this radius of curvature is 30 cm.

(i) Monochromatic light of wavelength 589 nm is incident from air on a water surface. If mu for water is 1.33, find the wavelength, frequency and speed of the refracted light? (ii) A double convex lens is made of glass refractive index 1.55, with both faces of the same radius of curvature. Find the radius of curvature required, if the focal length is 20 cm.