EBK PHYSICS FOR SCIENTISTS AND ENGINEER
9th Edition
ISBN: 8220100663987
Author: Jewett
Publisher: Cengage Learning US
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Chapter 35, Problem 35.10P
A dance hall is built without pillars and with a horizontal ceiling 7.20 m above the floor. A mirror is fastened flat against one section of the ceiling. Following an earthquake, the mirror is in place and unbroken. An engineer makes a quick check of whether the ceiling is sagging by directing a vertical beam of laser light up at the mirror and observing its reflection on the floor. (a) Show that if the mirror has rotated to make an angle ϕ with the horizontal, the normal to the mirror makes an angle ϕ with the vertical. (b) Show that the reflected laser light makes an angle 2ϕ with the vertical. (c) Assume the reflected laser light makes a spot on the floor 1.40 cm away from the point vertically below the laser. Find the angle ϕ.
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A dance hall is built without pillars and with a horizontal ceiling 7.20 m above the floor. A mirror is fastened flat against one section of the ceiling. Following an earthquake, the mirror is in place and unbroken. An engineer makes a quick check of whether the ceiling is sagging by directing a vertical beam of laser light up at the mirror and observing its reflection on the floor. (a) Show that if the mirror has rotated to make an angle φ with the horizontal, the normal to the mirror makes an angle φ with the vertical. (b) Show that the reflected laser light makes an angle 2φ with the vertical. (c) Assume the reflected laser light makes a spot on the floor 1.40 cm away from the point vertically below the laser. Find the angle φ.
A dance hall is built without pillars and with a horizontal ceiling 7.5 m above the floor. A mirror is fastened flat against one section of the ceiling. Following an earthquake, the mirror is in place and unbroken. An engineer makes a quick check of whether the ceiling is sagging by directing a vertical beam of laser light up at the mirror and observing its reflection on the floor. The reflected laser light makes a spot on the floor 1.6 cm away from the point vertically below the laser showing that the mirror has rotated by angle Φ with respect to the horizon. determine the angle Φ. (Give your answer in decimal with three digits after the decimal point using "degree" as unit.)
Hint: if the mirror rotates by Φ, by how much does the normal to its surface rotate?
The critical angle for total internal
reflection at a liquid-air interface is
43.5°.
If a ray of light traveling in the liquid
has an angle of incidence of 30.0° at
the interface with respect to the
normal, what angle does the refracted
ray in the air make with the normal?
If a ray of light traveling in air has an
angle of incidence of 30.0⚫ at the
interface with respect to the normal,
what angle does the refracted ray in
the liquid make with the normal?
Chapter 35 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
Ch. 35 - Prob. 35.1QQCh. 35 - If beam is the incoming beam in Figure 34.10b,...Ch. 35 - Light passes from a material with index of...Ch. 35 - In photography, lenses in a camera use refraction...Ch. 35 - Prob. 35.5QQCh. 35 - In each of the following situations, a wave passes...Ch. 35 - A source emits monochromatic light of wavelength...Ch. 35 - Carbon disulfide (n = 1.63) is poured into a...Ch. 35 - A light wave moves between medium 1 and medium 2....Ch. 35 - What happens to a light wave when it travels from...
Ch. 35 - The index of refraction for water is about 43....Ch. 35 - Prob. 35.7OQCh. 35 - What is the order of magnitude of the time...Ch. 35 - Prob. 35.9OQCh. 35 - Prob. 35.10OQCh. 35 - A light ray navels from vacuum into a slab of...Ch. 35 - Suppose you find experimentally that two colors of...Ch. 35 - Prob. 35.13OQCh. 35 - Which color light refracts the most when entering...Ch. 35 - Prob. 35.15OQCh. 35 - Prob. 35.1CQCh. 35 - Prob. 35.2CQCh. 35 - Prob. 35.3CQCh. 35 - The F-117A stealth fighter (Fig. CQ35.4) is...Ch. 35 - Prob. 35.5CQCh. 35 - Prob. 35.6CQCh. 35 - Prob. 35.7CQCh. 35 - Prob. 35.8CQCh. 35 - A laser beam passing through a non homogeneous...Ch. 35 - Prob. 35.10CQCh. 35 - Prob. 35.11CQCh. 35 - (a) Under what conditions is a mirage formed?...Ch. 35 - Figure CQ35.13 shows a pencil partially immersed...Ch. 35 - Prob. 35.14CQCh. 35 - Prob. 35.15CQCh. 35 - Prob. 35.16CQCh. 35 - Prob. 35.17CQCh. 35 - Prob. 35.1PCh. 35 - The Apollo 11 astronauts set up a panel of...Ch. 35 - Prob. 35.3PCh. 35 - As a result of his observations, Ole Roemer...Ch. 35 - The wavelength of red helium-neon laser light in...Ch. 35 - An underwater scuba diver sees the Sun at an...Ch. 35 - A ray of light is incident on a flat surface of a...Ch. 35 - Figure P35.8 shows a refracted light beam in...Ch. 35 - Prob. 35.9PCh. 35 - A dance hall is built without pillars and with a...Ch. 35 - Prob. 35.11PCh. 35 - A ray of light strikes a flat block of glass (n =...Ch. 35 - A prism that has an apex angle of 50.0 is made of...Ch. 35 - Prob. 35.14PCh. 35 - A light ray initially in water enters a...Ch. 35 - A laser beam is incident at an angle of 30.0 from...Ch. 35 - A ray of light strikes the midpoint of one face of...Ch. 35 - Prob. 35.18PCh. 35 - When you look through a window, by what time...Ch. 35 - Two flat, rectangular mirrors, both perpendicular...Ch. 35 - Prob. 35.21PCh. 35 - Prob. 35.22PCh. 35 - Two light pulses are emitted simultaneously from a...Ch. 35 - Light passes from air into flint glass at a...Ch. 35 - A laser beam with vacuum wavelength 632.8 nm is...Ch. 35 - A narrow beam of ultrasonic waves reflects off the...Ch. 35 - Prob. 35.27PCh. 35 - A triangular glass prism with apex angle 60.0 has...Ch. 35 - Light of wavelength 700 nm is incident on the face...Ch. 35 - Prob. 35.30PCh. 35 - Prob. 35.31PCh. 35 - Prob. 35.32PCh. 35 - Prob. 35.33PCh. 35 - A submarine is 300 m horizontally from the shore...Ch. 35 - Prob. 35.35PCh. 35 - The index of refraction for red light in water is...Ch. 35 - A light beam containing red and violet wavelengths...Ch. 35 - The speed of a water wave is described by v=gd,...Ch. 35 - Prob. 35.39PCh. 35 - Prob. 35.40PCh. 35 - A glass optical fiber (n = 1.50) is submerged in...Ch. 35 - For 589-nm light, calculate the critical angle for...Ch. 35 - Prob. 35.43PCh. 35 - A triangular glass prism with apex angle has an...Ch. 35 - Prob. 35.45PCh. 35 - Prob. 35.46PCh. 35 - Consider a common mirage formed by superheated air...Ch. 35 - A room contains air in which the speed of sound is...Ch. 35 - An optical fiber has an index of refraction n and...Ch. 35 - Prob. 35.50PCh. 35 - Prob. 35.51APCh. 35 - Consider a horizontal interface between air above...Ch. 35 - Prob. 35.53APCh. 35 - Why is the following situation impossible? While...Ch. 35 - Prob. 35.55APCh. 35 - How many times will the incident beam in Figure...Ch. 35 - When light is incident normally on the interface...Ch. 35 - Refer to Problem 37 for its description of the...Ch. 35 - A light ray enters the atmosphere of the Earth and...Ch. 35 - A light ray enters the atmosphere of a planet and...Ch. 35 - Prob. 35.61APCh. 35 - Prob. 35.62APCh. 35 - Prob. 35.63APCh. 35 - Prob. 35.64APCh. 35 - The light beam in Figure P35.65 strikes surface 2...Ch. 35 - Prob. 35.66APCh. 35 - A 4.00-m-long pole stands vertically in a...Ch. 35 - Prob. 35.68APCh. 35 - A 4.00-m-long pole stands vertically in a...Ch. 35 - As sunlight enters the Earths atmosphere, it...Ch. 35 - Prob. 35.71APCh. 35 - A ray of light passes from air into water. For its...Ch. 35 - As shown in Figure P35.73, a light ray is incident...Ch. 35 - Prob. 35.74APCh. 35 - Prob. 35.75APCh. 35 - Prob. 35.76APCh. 35 - Prob. 35.77APCh. 35 - Students allow a narrow beam of laser light to...Ch. 35 - Prob. 35.79APCh. 35 - Figure P34.50 shows a top view of a square...Ch. 35 - Prob. 35.81CPCh. 35 - Prob. 35.82CPCh. 35 - Prob. 35.83CPCh. 35 - Pierre de Fermat (16011665) showed that whenever...Ch. 35 - Prob. 35.85CPCh. 35 - Suppose a luminous sphere of radius R1 (such as...Ch. 35 - Prob. 35.87CP
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Spectra Interference: Crash Course Physics #40; Author: CrashCourse;https://www.youtube.com/watch?v=-ob7foUzXaY;License: Standard YouTube License, CC-BY