Answered: 2. If a ray is incident on a block of…

2. If a ray is incident on a block of material at 15° from the vertical, and is refracted to 8° from the vertical, what is the index of refraction?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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12. Material a is water and material b is plexiglass with index of refraction 1.49. The incident light ray makes an angle of 55o with the normal. Obtain the speed of light in material a. A. 2.256 x 108 m/s B. 3.220 x 108 m/s C. 2.088 x 108 m/s D. 3 x 108 m/s
4. A ray of light passes through a prism, making the minimum angle of deviation. The rays enter and emerge at 7° from the normal to the surface. What is the index of refraction of the material, if the prism angle is 50°?
14. Hot air rises over a heated stove element.Explain why the wall behind the stove appears to shimmer. 15. The critical angle from rock salt into air is 40.5o. What is the index of refraction for rock salt. (1.54) 16. The critical angle for a certain liquid-air surface is 61o. What is the liquid's index of refraction? (1.14) 17.The refractive indices of diamond and crown glass are 5/2 and 3/2 respectively.What is the critical angle between diamond and glass? (37o)
1. Consider a cuboid made of crown glass which has inner space filled with water. A ray of light is incident onto the 10 cm thick block of glass on the top face of the cuboid at 60◦ from the normal. It then meets the glass-water boundary and is refracted again and continues through a water thickness of 5 cm before reaching another water-glass boundary. The ray of light is again refracted and continues in the 10 cm thick block of glass on the base of the cuboid and eventually exits into air. (a) Draw a clearly labelled diagram of the path the ray of light takes. (b) Calculate all the angles of refraction and incidence at each boundary. (c) Calculate the optical path of the ray of light from the point it is incident on the surface of the cuboid to the point it exits into air on the other end.
6. A ray of light, emitted beneath the surface of an unknown liquid with air above it, undergoes total internal reflection as shown below. What is the index of refraction for the liquid and its likely identification? 13.4 cm. n₂ n₁ 15.0 cm
2. A ray of light in glass (n₁=1.5) enters another material (n2) at a 70° angle; and emerges into the new material at a 45° angle. Find the index n2. n₁=1.5 70° N2 45°
8. Light strikes the 70° glass prism (n = 1.51) with an angle of incidence of 50.0°. Calculate the angle that the light leaves the prism. (73.9°) 70d 9. Light is incident on an equilateral Lucite prism (n = 1.5) at an angle of 35°. Calculate the angle that the light leaves the prism. (66°) %3D ? 10. Freddie the fish shines his flashlight upward from under water. If Freddie shines his flashlight at an incident angle of 20°, at what angle does the light leave the water? (27°) В. A. Beyond what critical angle will the light no longer be able to leave the water? (48.8°) 11. From inside an aquarium a ray of light is directed at the glass so the angle of incidence, in water, is 30°. (a) Determine the angle of refraction when the ray emerges from the glass into the air. (b) If the angle of incidence in the water is 52° at what angle will the rays emerge from the glass? (42°, no ray emerges) water air n = 1.33 n = 1.00 30° glass n = 1.50
1. A ray of light is passing through air (n=1). It strikes a level surface of water (n=1.33) at an angle of 40° with respect to the surface of the water. The water is 10 cm thick. The light ray refracts and travels through the water. There is a level layer of clear polystyrene (n = 1.6) that the water is resting upon. The light ray hits the polystyrene level and travels through it, finally reaching a sheet of glass (n=1.45). Given that the speed of light in a vacuum is 3 x 108 m/s, calculate the speed of light in the water and the time it takes for the light to traverse the water layer. (actual question i need answered) *Using the arrangement in Problem 1, calculate the critical angle for total internal reflection at the polystyrene-glass interface
5. Light enters a container of benzene at an angle of 43° to the normal; the refracted beam makes an angle of 27° withthe normal. Calculate the index of refraction of benzene.
2. A small light source (point source) is located in water (nr 1.33) at a depth d below the surface. Determine (a.) the critical angle for total reflection of light at the water-air interface (b.) the depth of the light source if an observer above the water sees an illuminated circle of 3m radius.
7. Water has an index of refraction of about n = 1.3. If sunlight is hitting a lake surface at a 45 ° angle, what is the angle of the water rays inside the water?
2. A narrow beam of light is incident from air onto the surface of glass with index of refraction 1.56. Find the angle of incidence for which the corresponding angle of refraction is half the angle of incidence. (Suggestion: You might want to use the trigonometric identity sin 2θ = 2sinθcosθ.)