# Question: a For a convex lens what is the minimum distance

(a) For a convex lens, what is the minimum distance between an object and its image if the image is real?

(b) What is the minimum distance if the image is virtual?

(b) What is the minimum distance if the image is virtual?

**View Solution:**## Answer to relevant Questions

Using Fig. 23.28, derive (a) The thin lens equation and (b) The magnification equation for a thin lens. A biology student wants to examine a bug at a magnification of + 5.00 (a) The lens should be (1) convex, (2) concave, (3) flat. Explain. (b) If the bug is 5.00 cm from the lens, what is the focal length of the lens? A plastic convex meniscus (Fig. 23.14) contact lens is made of plastic with an index of refraction of 1.55. The lens has a front radius of 2.50 cm and a back radius of 3.00 cm. (a) The signs of R1 and R2 are (1) +, +, (2) ...An object is 40 cm from a converging lens whose focal length is 20 cm. On the opposite side of that lens, at a distance of 60 cm, is a plane mirror. Where is the final image measured from the lens, and what are its ...Suppose that you held two polarizing sheets in front of you and looked through both of them. How many times would you see the sheets lighten and darken (a) If one were rotated through one complete rotation, (b) If both ...Post your question