A microscope has a magnification of M1. If the objective is replaced with one that has a magnification that is 3 time smaller, determine the new magnification (Mnew). Mnew = M1 x

The projection lens in a certain slide projector is a single thin lens. A slide 23.7 mm high is to be projected so that its image fills a screen 1.71 m high. The slide- to-screen distance is 3.02 m. (a) Determine the focal length of the projection lens. mm (b) How far from the slide should the lens of the projector be placed to form the image on the screen? mm

A transparent photographic slide is placed in front of a converging lens with a focal length of 2.53 cm. An image of the slide is formed 12.0 cm from the slide. (a) How far is the lens from the slide if the image is real? (Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.) cm cm (b) How far is the lens from the slide if the image is virtual? (Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.) cm cm Need Help? Master It

A camera with a 110 mm lens takes a photograph of a 1.10 m-tall object located 41 m away. Calculate the height of the image (in mm) on the film. Enter the numerical part of your answer to one decimal figure. Hint: Remember that the sign of the magnification is significant.