21st Century Astronomy 6E
6th Edition
ISBN: 9780393690675
Author: Laura Kay, Stacy Palen, George Blumenthal
Publisher: W. W. Norton
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Chapter 5, Problem 9QP
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The direction that a light wave bends once it enters the refracted medium depends on
a. The index of refraction of the incident medium only.
b. The indices of refraction of both the incident and refracted media.
C. The angle of incidence of the incident light ray only.
d. The index of refraction of the refracted medium, only.
1. Write Fact is the statement is tre and Bluff if it is false.
a. Soud can travel through solids, liquids, and gas.
b. Light travels in a straight line until it hits something.
c. Light is a form of energy that we can see things with our eyes.
d. When light hits a material. It begin to travel in a curve line.
e. Light travels at a speed of 300,000 kilometers per second through a vacuum.
2b. The speed of light in a vacuum is 2.999 x 10^8 m/s. Convert the speed in;
(i) km/h
(ii) mi/min
Chapter 5 Solutions
21st Century Astronomy 6E
Ch. 5.1 - Prob. 5.1ACYUCh. 5.1 - Prob. 5.1BCYUCh. 5.2 - Prob. 5.2CYUCh. 5.3 - Prob. 5.3CYUCh. 5.4 - Prob. 5.4CYUCh. 5.5 - Prob. 5.5CYUCh. 5 - Prob. 1QPCh. 5 - Prob. 2QPCh. 5 - Prob. 3QPCh. 5 - Prob. 4QP
Ch. 5 - Prob. 5QPCh. 5 - Prob. 6QPCh. 5 - Prob. 7QPCh. 5 - Prob. 8QPCh. 5 - Prob. 9QPCh. 5 - Prob. 10QPCh. 5 - Prob. 11QPCh. 5 - Prob. 12QPCh. 5 - Prob. 13QPCh. 5 - Prob. 14QPCh. 5 - Prob. 15QPCh. 5 - Prob. 16QPCh. 5 - Prob. 17QPCh. 5 - Prob. 18QPCh. 5 - Prob. 19QPCh. 5 - Prob. 20QPCh. 5 - Prob. 21QPCh. 5 - Prob. 22QPCh. 5 - Prob. 23QPCh. 5 - Prob. 24QPCh. 5 - Prob. 25QPCh. 5 - Prob. 26QPCh. 5 - Prob. 27QPCh. 5 - Prob. 28QPCh. 5 - Prob. 29QPCh. 5 - Prob. 30QPCh. 5 - Prob. 31QPCh. 5 - Prob. 32QPCh. 5 - Prob. 33QPCh. 5 - Prob. 34QPCh. 5 - Prob. 35QPCh. 5 - Prob. 36QPCh. 5 - Prob. 37QPCh. 5 - Prob. 38QPCh. 5 - Prob. 39QPCh. 5 - Prob. 40QPCh. 5 - Prob. 41QPCh. 5 - Prob. 42QPCh. 5 - Prob. 43QPCh. 5 - Prob. 44QPCh. 5 - Prob. 45QP
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- A Fill in the missing entries in Table P38.70. Table P38.70arrow_forwardUnreasonable results Light traveling from water to a gemstone strikes the surface at an angle of 80.00 and has an angle of refraction of 15.2°. (a) What is the speed of light in the gemstone? (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?arrow_forwardA farmer wants to fence off his four-sided plot of flat land. He measures the first three sides, shown as A, B, and C in Figure 3.62, and then correctly calculates the length and orientation of the fourth side D. What is his result?arrow_forward
- The Tunguska event. On June 30, 1908, a meteor burned up and exploded in the atmosphere above the Tunguska River valley in Siberia. It knocked down trees over thousands of square kilometers and started a forest fire, but produced no crater and apparently caused no human casualties. A witness sitting on his doorstep outside the zone of falling trees recalled events in the following sequence. He saw a moving light in the sky, brighter than the Sun and descending at a low angle to the horizon. He felt his face become warm. He felt the ground shake. An invisible agent picked him up and immediately dropped him about a meter from where he had been seated. He heard a very loud protracted rumbling. Suggest an explanation for these observations and for the order in which they happened.arrow_forwardAs a car heads down a highway traveling at a speed v away from a ground observer, which of the following statements are true about the measured speed of the light beam from the cars headlights? More than one statement may be correct, (a) The ground observer measures the light speed to be c + . (b) The driver measures the light speed to be c. (c) The ground observer measures the light speed to be c. (d) The driver measures the light speed to be c - . (e) The ground observer measures the light speed to be c - .arrow_forwardA laser beam passing through a non homogeneous sugar solution follows a curved path. Explain.arrow_forward
- A ray of light is incident on a plane mirror and the angle of reflection is 79 degrees. What is the angle between the incident ray and the reflected ray? O a. 40 degrees O b. 79 degrees O c. 101 degrees O d. 158 degreesarrow_forwardA ray of light strikes a medium with a refractive index 1.5. Part of it is reflected (angle of reflection is theta) and part is refracted (angle of refraction is phi). Then a. theta < phi b. theta > phi c. theta = 3 X phi d. theta = phi e. theta = 1.5 X phiarrow_forwarda. Rank the materials according to the speed of light in the material, greatest/fastest first. b. Discuss what would happen to the angle v if material X and Y are swapped.arrow_forward
- The instrument that can record the image of a faint object in the least amount of observing time is the a. human eye. b. photographic plate. c. photometer. d. charge-coupled device (CCD). e. spectrometer.arrow_forward6. The diagram shows a light wave passing through the air toward an opaque piece of glass. Which statement best describes what will happen to the wave as it strikes the glass?A. It will refract and bend away from the normal.B. It will reflect at an angle perpendicular to the glass.C. It will continue passing through the glass in its original path.D. It will reflect at an angle that is equal to the angle of incidence.arrow_forwardLight in alcohol (n = 1.36) is incident on flint glass (n = 1.66) as shown below. Normal Alcohol Flint Glass Which of the following is a true statement about the path of the light in the flint glass? The speed of the light decreases and the ray bends away from the normal The speed of the light decreases and the ray bends toward the normal The speed of the light increases and the ray bends toward the normal The speed of the light increases and the ray bends away from the normalarrow_forward
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