\f1. Suppose that the distance between the object and the objective lens is 75 mm and the objective lens has a focal length of 50 mm. Where will the image be located relative to the lens? 2. What is the total distance between the object and the image? 3. Suppose you replace the lens with a lens of focal length 60 mm, but kept the distance between the object and lens at 75 mm. Where would the new image be formed relative to the lens? 4. What is the new total distance between the object and image? 5. Based on your answers to questions Al-4, is it possible to only change the focal length of the lens and keep the distance between the object and image the same length? If not, then what other distances must also change when you change the focal length in order to keep the distance between the object and image constant? Explain.Some microscopes use two lenses to produce a real image, which is then projected onto a CCD and displayed on a computer. 1. Imagine you had a converging lens of focal length f. If an object is placed a distance s = f from that lens, then what is the magnification of the image formed by the lens? Explain. 2. If instead the object were placed a distance s = 2f from that lens, then what would be the magnification of the image formed by the lens? Explain. 3. If you want a lens of focal length f to produce an image with magnification | m | > 1, then what is the range of possible object distances? 4. Make a ray diagram for a converging lens (focal length f) with the object at a distance chosen so that the image will have a magnification | m, | > 1 (based on your answer to B3 above). Use ray tracing to determine where the image is formed. 5. Is the image you found in question B4 upright or inverted? 6. Now add to your diagram a second converging lens (focal length f,) on the same optic axis. The image formed by the first lens serves as the object for the second lens. Place the second lens at a distance from the image of the first lens such that the image produced by the second lens has a magnification | m, | > 1. 7. Add rays to your diagram (perhaps using another color pen) to locate the image formed by the second lens. 8. Choose the words that best complete the following sentence describing the image produced by the second lens: The image is (real/ virtual) and _(upright/ inverted) relative to the original object. 9. How is the overall magnification (the ratio of the size of the final image to the size of the original object) related to m, and m,? 10. Is the overall magnification larger or smaller than 1?1. If you place two lenses with f= 75 mm a distance 200 mm apart and place an object 125 mm from the first lens, at what distance from the original object will the final image be formed? 2. Calculate the magnification of the final image and determine if the image is real or virtual and if it is upright or inverted