21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 5, Problem 9QP
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Choose the correct option.
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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.
According to Newton's ray model of light, what can cause a light ray to change direction?
A. The addition or subtraction of particles from the light ray
B. A change in the intensity of the light.
C. A change in the wavelength of the light wave.
D. An obstruction in the path of the ray.
When the light is passing from rarer to a
denser medium, which is the correct
statement?
a. speed becomes zero
b. speed of light increases
c. speed of light remains constant
d. speed of light decreases
Chapter 5 Solutions
21st Century Astronomy
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 submarine is 300 m horizontally from the shore of a fresh water lake and 100 m beneath the surface of the water. A laser beam is sent from the submarine so that the beam strikes the surface of the water 210 m from the shore. A building stands on the shore, and the laser beam hits a target at the top of the building. The goal is to find the height of the target above sea level. (a) Draw a diagram of the situation, identifying the two triangles that are important in finding the solution. (b) Find the angle of incidence of the beam striking the waterair interface. (c) Find the angle of refraction. (d) What angle docs the refracted beam make with the horizontal? (e) Find the height of the target above sea level.arrow_forwardA Fill in the missing entries in Table P38.70. Table P38.70arrow_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_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_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_forward
- A laser beam passing through a non homogeneous sugar solution follows a curved path. Explain.arrow_forwardDifferent forms of light are due to? A. Different frequencies of electromagnetic waves. B. A change in amplitude of the electromagnetic waves. C. Whether the light is a transverse or longitudinal wave. D. change in the form of light when the medium changes.arrow_forwardWhen light passing through a prism undergoes dispersion, the effect is a result of:a. different wavelengths traveling at different speeds.b. different wavelengths having different indices of refraction.c. different wavelengths refracting differently.d. All of the abovearrow_forward
- What happens to the length of an object as its velocity approaches the speed of light? A. The object appears to shorten. B. The object's length does not change to an outside observer. C. The object's apparent length is not affected by high speeds. D. The object appears to lengthen.arrow_forwardWhat is the defining characteristic of a perfect blackbody? a. It looks black in ordinary white light. b. It absorbs all radiation incident on it. c. The temperature of a glacier increased over time. d. It has a surface temperature of absolute zero. e. It has a surface that reflects 50% of light evenly across all frequenciesarrow_forward1. 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.arrow_forward
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