King obliquely at a window, you máy see two reflected images close to each other. What causes this? Binoculars and periscopes use prisms instead of mirrors to reflect light. How does this happen? Draw a sketch. When hot air rises above a stove top, objects behind it appear to shimmer. What causes this? In Figure 10.1, which refractive index is greater, n, or n? How would the figure appear if it was

Q2. The two fixed mirrors below are designed so that the angle of deviation of a light ray a is twice the ẞ angle regardless of the angle of incidence. Using the law of reflection proves this is true. to

pility: Good to go The sun is 150,000,000 km from earth; its diameter is 1,400,000 km. For a science project on solar power, a student uses a 24-cm-diameter converging mirror with a focal length of 53 cm to focus sunlight onto an object. This casts an image of the sun on the object. For the most intense heat, the image of the sun should be in focus. a. Where should the object be placed? b. What is the diameter of the image? 2 c. The intensity of the incoming sunlight is 1050 W/m². What is the total power of the light captured by the mirror? d. What is the intensity of sunlight in the projected image? Assume that all of the light captured by the mirror is focused into the image. Focus 88 E 84°F ^

In a refracting telescope, spherical aberration limits __________ .   a. The length of the telescope   b. The focal length of the eyepiece   c. Chromatic aberration   d. The diameter of the objective lens   e. The total focusing power of the telescope