1. (5 pts.) If an object, lens, and screen are positioned so that a real image i

Question

1. (5 pts.) If an object, lens, and screen are positioned so that a real image is formed on the screen, how will the image change if half of the lens is covered by a piece of paper Explain your reasoning. . Object 2. (2 pts.) Light rays travel from air into 2 double convex glass lenses, which are identica except that Lens 2 has a much higher index of refraction n than Lens 1. Which lens w produce an image closer to the lens? Why? 3. If you draw the 3 principal rays on a ray tracing diagram and they do not conver a) (1 pt.) What can you conclude about the image? b) (2 pts.) How can you still use the rays to locate the image?

Explanation / Answer

1. Full image will be formed, as as that of first one. The only difference will be of intensity . half covered lens's image will be slight less intense than full lens's image.

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