Which of the following statements is true of spherical aberration? (Choose as many as apply.) (A) It is caused by the fact that light passing through the edges of a lens focuses at a slightly different place from light passing through the center of the lens. (B) It is caused by the fact that different colors of light refract by slightly different amounts and so do not focus in the same place. (C) It is reduced in dimmer light because the pupil of the eye expands and allows more light in. (D) It is reduced in bright light because the pupil of the eye contracts and light passes only through the center of the eye's lens, where spherical aberrations are minimal.
Which of the following statements about electron microscopes are true? (Choose as many as apply.) (A) They are used to view objects with a size greater than the wavelength of light. (B) They are used to view objects with a size smaller than the wavelength of light. (C) They are used because the wavelength of electrons is shorter than the wavelength of light. (D) They are used because the wavelength of electrons is longer than the wavelength of light.
Thomas Young performed an experiment that demonstrated (A) the wave nature of light by proving that light waves that pass through narrow slits form interference patterns (B) the wave nature of light by proving that light waves that pass through narrow slits do not form interference patterns (C) nothing, because Young made an error and did not use monochromatic light (D) the difference between monochromatic and chromatic light by proving that light waves that pass through narrow slits do not produce shadows.
Answer the following questions in the space provided. If you wish, you may draw and label diagrams to aid in giving your answers. Where indicated, you must show your calculations to receive full credit for a correct answer.
Imagine that you saw a beam of monochromatic light shine from a vacuum into a prism made out of diamond, where the speed of light is much slowed. Then you saw a beam of white light shine from the vacuum into the diamond prism. What would the prism do to the white that it would not do to the monochromatic light? Explain your answer. (In answering this question, you may find it helpful to look at the website assigned for Self-Check Test 29.* You should, however, be able to answer this question based only on your study of Part 8.)