001 10.0 points The reflecting surfaces of two intersecting flat mirrors are at an angle of 56", as shown in the figure. A light ray strikes the horizontal mirror at an angle of 52" with respect to the mirror's surface. 52" Figure is not drawn to scale. Calculate the angle o. Answer in units of ". 002 10.0 points An object is placed near a plane mirror, as shown. mirror . C surface .S . Y . M Object . . D Which of the labeled points is the position of the image? 1. Y 2. S 3.0 4. D 5. M 003 10.0 points Given: The sun is 1.5 x 10" km from Earth.The index of refraction for water is 1.369. How much longer would it take light from the sun to reach Earth if the space between them were filled with water rather than a vacuum? Answer in units of min. 004 (part 1 of 3) 10.0 points Consider a light ray which enters from air to a liquid, where the index of refraction of the liquid is given by a = 1.5. Consider the following three ratios, where each is defined by the specified quantity in the liquid, N', f', and v', to that in the air, A, f, and c. light | ray n = 1 Air 1.5 Liquid N'. What is the ratio of their wavelengths, 005 (part 2 of 3) 10.0 points What is the ratio of their frequencies of oscil lations. 006 (part 3 of 3) 10.0 points What is the ratio of the traveling speeds, -? 007 10.0 points Light goes from flint glass into ethanol. The angle of refraction in the ethanol is 26.8", the index of refraction for flint glass is 1.61, and the index of refraction for ethanol is 1.36. What is the angle of incidence in the glass? Answer in units of ". 008 10.0 points A narrow beam of light passes through a plate of glass with thickness 2.06 cm and a refractive index 1.46. The beam enters from air at an angle 36 ". The goal is to calculate the deviation d of the ray as indicated in the figure.2 = 1.46 2.06 cm Find deviation d. Answer in units of cm. 009 10.0 points A diver shines a light up to the surface of a flat glass-bottomed boat at an angle of 40" relative to the normal. If the indices of refraction of air, water, and glass are 1.0, 1.33, and 1.4 respectively, at what angle does the light leave the glass (relative to its normal)? Answer in units of ". 010 10.0 points A cylindrical cistern, constructed below ground level, is 3 m in diameter and 2 m deep and is filled to the brim with a liquid whose index of refraction is 1.51. A small ob- ject rests on the bottom of the cistern at its center. 1.5 m 3 m 2 m How far a from the edge of the cistern can a girl whose eyes are 1.5 m from the ground stand and still see the object? Answer in units of m. 011 (part 1 of 4) 10.0 points Light of wavelength 1080 nm is incident on the face of a silica prism at an angle of 01 = 61.3" (with respect to the normal to the surface). The apex angle of the prism is $ = 68". Given: The value of the index of refraction for silica is n = 1.455.H Find the angle of refraction at this first surface. Answer in units of degrees. 012 (part 2 of 4) 10.0 points Find the angle of incidence at the second sur- face. Answer in units of degrees. 013 (part 3 of 4) 10.0 points Find the angle of refraction at the second surface. Answer in units of degrees. 014 (part 4 of 4) 10.0 points Find the angle between the incident and emerging rays. Answer in units of degrees. 015 10.0 points A certain kind of glass has an index of refrac- tion of 1.646 for blue light of wavelength 430 nm and an index of 1.611 for red light of wave- length 680 nm. A beam containing these two colors is incident at an angle of 24.26- on a piece of this glass. What is the angle between the two beams inside the glass? Answer in units of "- 016 10.0 points A fiber optic cable (after = 1.46) is sub- merged in water (nwater = 1.32). What is the critical angle for light to stay inside the cable? Answer in units of ". 017 10.0 points3.15 Am - Determine the maximum angle & for which the light rays incident on the end of the light pipe shown in the figure above are subject to total internal reflection along the walls of the pipe. The pipe of diameter 3.15 am has an index of refraction of 1.27 and the outside medium is air. Answer in units of ". 018 10.0 points Light strikes the surface of a prism, n = 1.51, as shown in the figure. If the prism is surrounded by a fluid, what is the maximum index of refraction of the fluid that will still cause total internal reflection within the prism