Question

14.(a) The image of an object formed by a convex lens is of the same size as the object. If
the image is formed at a distance of 40 cm,
(i)Find the focal length of the lens. Also find the power of the lens. (2)
(T)At what distance from the lens is the objectplaced? (1)
(iii) Draw ray diagram for this case. (1)​

Answer 1

Answer:

f will be less than f1 Explan..ation 1f = 1F1 + 1F2 1f1 = 1F1 + 1F2 - dF1F2 where d is th..e distance between lenses.