Focal Length of a Lens:Focal length of a spherical lens is equal to half of its radius of curvature. It is positive for the convex lens; however, the focal length of a concave lens is negative. According to the sign convention, the...
A concave mirror with a focal length of 36 cm produces an image whose distance from the mirror is one-third the object distance. Find the object and image distances. An object is 12 centimeters from a concave mirror of radius of curvature...
An object is 12 centimeters from a concave mirror of radius of curvature 6 centimeters. Find the focal length of the mirror and the image distance. An orthodontist wishes to inspect a patient's tooth with a magnifying mirro...
A double convex lens is made from glass with an index of refraction of n = 1.5 The magnitudes of its radii of curvature R_1 and R_2 are 10.0 cm and 15.0 cm, respectively. What is the focal length of the lens? f = ___ cm Light ...
Find the focal length of a glass lens that has an index of refraction equal to 1.58, a concave surface that has a radius of curvature of magnitude 100 cm, and a convex surface that has a radius of curA diverging lens has a focal length of -25cm. Find the ...