" 4.Derive lens-maker's formula."

Derive th lens maker's formula.

A. a convex lens a. is thicker at the edges than at the middle. b. is thicker at the middle than at the edges. c. Diverges rays of light. d. is of uniform thickness everywhere. B. with the help of a ray diagram sketch the image formation of a convex lens when the object is between C and F. C. Derive the lens maker's formula.

The focal length of a lens has dependence on its radii of curvatures and refractive index. Derive Lens maker's formula.

A lens of particular focal length is made from a given glass by adjusting radius of curvature. The formula applied in this case is lens maker's formula. Derive lens maker's formula considering refraction at a spherical surface

(a) Derive lens maker's formula for a biconvex lens. (b) A point object is placed at a distance of 12 cm on the principal axis of a convex lens of focal length 10 cm. A convex mirror is placed coaxially on the other side of the lens at a distance of 10 cm. If the final image coincides with the object, sketch the ray diagram and find the focal length of the convex mirror.

Derive lens maker's formula for a thin concave lens.