Home
Class 12
PHYSICS
[" 139A thin double convex lens has radi...

[" 139A thin double convex lens has radi of curvature each of magnitude "40cm" and is made "],[" of glass with refractive index "1.65." Its focal length is nearly "],[[" (a) "20cm," (b) "31cm],[" (c) "35cm," (d) "50cm]]

Promotional Banner

Similar Questions

Explore conceptually related problems

A thin double convex lens has radii of curvature each of magnitude 40 cm and is made of glass with refractive index 1.65. Its focal length is nearly

The radii of curvatures of a double convex lens are 15 cm and 30 cm, and its refractive index is 1.5. Then its focal length is -

The radius of curvature for a convex lens is 40 cm , for each surface. Its refractive index is 1.5. The focal length will be

A plane convex lens has a focal length 12cm and is made up of glass with refractive index 1.5. Find the radius of curvature of its curved side.

A plane convex lens has a focal length 12cm and is made up of glass with refractive index 1.5. Find the radius of curvature of its curved side.

The radii of curvature of double convex lens are 30 cm and 60 cm and its refractive index is 1.5 .Calculate its focal length.

The radii of curvature of a double convex lens are 30 cm and 60 cm and its refractive index is 1.5. calculate its focal length.

The radius of curvature of each face of a biconcave lens made of glass of refractive index 1.5 is 30 cm. Calculate the focal length of the lens is air.