EBK PHYSICS
5th Edition
ISBN: 8220103026918
Author: Walker
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 2CQ
While wearing your Polaroid sunglasses at the beach, you notice that they reduce the glare from the water better v/hen you are sitting upright than when you are lying on your side. Explain.
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29) A vertically polarized wave comes from the air environment at an angle of 30 degrees to the
planar glass-air interface. Wave frequency is 600 THz. (1 THz = 10 ^ 12 Hz). The refractive index of
the glass is 1.6 and the electric field amplitude of the incident wave is 50 V/ m. Find the amplitude
of the E field in the glass.
Dik kutuplanmış bir dalga hava ortamından 30 derecelik bir açıyla düzlemsel
cam-hava arayüzüne gelmektedir.Dalga frekansı 600 THz dir (1 THz = 1012 Hz)
camın kırılma indisi 1.6 ve gelen dalganın elektrik alan genliği ise 50V/m dir.
Cam içindeki E alanın genliğini bulunuz?
O -36,5
29
O 50
O 63,5
O 13,5
O 36,5
28) A vertically polarized wave comes from the air environment at an angle of 30 degrees to the
planar glass-air interface. Wave frequency is 600 THz. (1 THz = 10 ^ 12 Hz). The refractive index of
the glass is 1.6 and the electric field amplitude of the incident wave is 50 V / m. Find the reflection
coefficient.
Dik kutuplanmış bir dalga hava ortamından 30 derecelik bir açıyla düzlemsel
cam-hava arayüzüne gelmektedir.Dalga frekansı 600 THz dir (1 THz = 1012 Hz)
camın kırılma indisi 1.6 ve gelen dalganın elektrik alan genliği ise 50V/m dir.
Yansıma katsayısını bulunuz?
O a. 1.27
28
Ob. -0.27
O c. -0.54
O d. 0.54
O e. -0.73
In the figure, initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of 0₁ =
40º, 0₂ = 19º, and 03 = 33° with the direction of the y axis. What percentage of the light's initial intensity is transmitted by the system?
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Chapter 25 Solutions
EBK PHYSICS
Ch. 25.1 - Enhance Your Understanding (Answers given at the...Ch. 25.2 - A distant galaxy is moving away from the Earth....Ch. 25.3 - If the frequency of an electromagnetic wave is...Ch. 25.4 - Prob. 4EYUCh. 25.5 - In the system shown in Figure 25-36, a vertically...Ch. 25 - Explain why the invisible man would be unable to...Ch. 25 - While wearing your Polaroid sunglasses at the...Ch. 25 - You want to check the tine while wearing your...Ch. 25 - BIO Polarization and the Ground Spider The ground...Ch. 25 - You are given a sheet of Polaroid material....
Ch. 25 - Can sound waves be polarized? Explain.Ch. 25 - At a garage sale you find a pair of Polaroid...Ch. 25 - If the electric field in an electromagnetic wave...Ch. 25 - Prob. 2PCECh. 25 - Prob. 3PCECh. 25 - Prob. 4PCECh. 25 - Give the direction (N, S, E, W, up, or down) of...Ch. 25 - Prob. 6PCECh. 25 - Prob. 7PCECh. 25 - The light year (ly) is a unit of distance commonly...Ch. 25 - Alpha Centauri, the closest star to the Sun, is...Ch. 25 - Prob. 10PCECh. 25 - A fighter jet is traveling at 515 m/s directly...Ch. 25 - A distant star is traveling directly away from...Ch. 25 - Prob. 13PCECh. 25 - Prob. 14PCECh. 25 - Prob. 15PCECh. 25 - Prob. 16PCECh. 25 - Communicating with the Voyager Spacecraft The...Ch. 25 - A father and his daughter are interested in the...Ch. 25 - Prob. 19PCECh. 25 - Prob. 20PCECh. 25 - Prob. 21PCECh. 25 - Baseball scouts often use a radar gun to measure...Ch. 25 - A state highway patrol car radar unit uses a...Ch. 25 - Prob. 24PCECh. 25 - Prob. 25PCECh. 25 - BIO Dental X-rays The X-rays produced in the...Ch. 25 - Find the frequency of green light with a...Ch. 25 - Prob. 28PCECh. 25 - How many led wavelengths ( = 705 nm) tall are you?Ch. 25 - A cell phone transmits at a frequency of 1.94 ...Ch. 25 - Microwave Oven If a microwave oven produces...Ch. 25 - BIO Human Radiation Under normal conditions,...Ch. 25 - BIO UV Radiation Ultraviolet light is typically...Ch. 25 - Prob. 34PCECh. 25 - Predict/Calculate When an electromagnetic wave...Ch. 25 - Predict/ Calculate (a) Which color of light has...Ch. 25 - Prob. 37PCECh. 25 - A television is tuned to a station broadcasting at...Ch. 25 - An AM radio stations antenna is constructed to be...Ch. 25 - Prob. 40PCECh. 25 - Find the difference in wavelength (1 2) for each...Ch. 25 - Synchrotron Frequency In one portion of a...Ch. 25 - Prob. 43PCECh. 25 - Prob. 44PCECh. 25 - Prob. 45PCECh. 25 - What is the rms value of the electric field in a...Ch. 25 - The magnetic field in an electromagnetic wave has...Ch. 25 - What is the maximum value of the electric field in...Ch. 25 - What is the maximum value of the electric field in...Ch. 25 - Predict/Calculate Electromagnetic wave 1 has a...Ch. 25 - A 75-kW radio station broadcasts its signal...Ch. 25 - At what distance will a 45-W lightbulb have the...Ch. 25 - What is the ratio of the sunlight intensity...Ch. 25 - Predict/Calculate In the following, assume that...Ch. 25 - Prob. 55PCECh. 25 - Prob. 56PCECh. 25 - Sunlight Intensity After filtering through the...Ch. 25 - Predict/Calculate (a) Find the electric and...Ch. 25 - Prob. 59PCECh. 25 - BIO You are standing 2.5 m from a 150-W lightbulb....Ch. 25 - Prob. 61PCECh. 25 - Find the rms electric and magnetic fields al a...Ch. 25 - Prob. 63PCECh. 25 - Prob. 64PCECh. 25 - Prob. 65PCECh. 25 - BIO Laser Surgery Each pulse produced by an...Ch. 25 - Prob. 67PCECh. 25 - Predict Explain Consider the two polarization...Ch. 25 - Predict/Explain Consider the two polarization...Ch. 25 - An incident beam of light with an intensityl0....Ch. 25 - Vertically polarized light with an intensity of...Ch. 25 - A person riding in a boat observes that the...Ch. 25 - Unpolarized light passes through two polarizers...Ch. 25 - In Problem 73, what should be the angle between...Ch. 25 - Unpolarized light is incident with intensity /0 on...Ch. 25 - Predict/Calculate A beam of vertically polarized...Ch. 25 - Predict/Calculate Repeat Problem 76, this time...Ch. 25 - BIO Predict/Calculate Optical Activity Optically...Ch. 25 - A helium-noon laser omits a beam of unpolarizod...Ch. 25 - Referring to Figure 25-46, suppose that filter 3...Ch. 25 - Prob. 81GPCh. 25 - CE If sailors of the future use radiation pressure...Ch. 25 - Prob. 83GPCh. 25 - BIO Radiofrequency Ablation In radiofrequency (RF)...Ch. 25 - Predict/Calculate At a particular instant of time,...Ch. 25 - Predict/Calculate A light beam traveling in the...Ch. 25 - Figure 25-47 shows four polarization experiments...Ch. 25 - Lightning and Thunder During a thunderstorm a bolt...Ch. 25 - Prob. 89GPCh. 25 - Prob. 90GPCh. 25 - Predict/Calculate Suppose the distance to the...Ch. 25 - BIO Predict/Calculate Consider the physical...Ch. 25 - BIO Polaroid Vision in a Spider Experiments show...Ch. 25 - A state highway patrol car radar unit uses a...Ch. 25 - What is the ratio of the sunlight intensity...Ch. 25 - What area is needed for a solar collector to...Ch. 25 - Prob. 97GPCh. 25 - Three polarizers are arranged as shown in Figure...Ch. 25 - Prob. 99GPCh. 25 - Orbital Drift The radiation pressure exerted by...Ch. 25 - A lightbulb emits light uniformly in all...Ch. 25 - Radio Reception A 125-kW radio station broadcasts...Ch. 25 - Light Rocket Stranded 12 m from your spacecraft,...Ch. 25 - A typical home may require a total of 2.00 103...Ch. 25 - Prob. 105GPCh. 25 - Predict/Calculate A typical laser used in...Ch. 25 - Four polarizers are set up so that the...Ch. 25 - BIO Optical Activity of Sugar The sugar...Ch. 25 - Visible-Light Curing in Dentistry An essential...Ch. 25 - Visible-Light Curing in Dentistry An essential...Ch. 25 - Visible-Light Curing in Dentistry An essential...Ch. 25 - Visible-Light Curing in Dentistry An essential...Ch. 25 - Predict/Calculate Referring to Example 25-12...Ch. 25 - Referring to Example 25-12 Suppose the incident...
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- A 2.0-mW helium-neon laser transmits a continuous beam of red light of cross-sectional area 0.25 cm2. If the beam does not diverge appreciably, how would its rms electric field vary with distance from the laser? Explain.arrow_forwardThree polarizing sheets are placed together such that the transmission axis of the second sheet is oriented at 25.0° to the axis of the first, whereas the transmission axis of the third sheet is oriented at 40.0° (in the same sense) to the axis of the first. What fraction of an intensity of an incident unpolarized beam is transmitted by the combination?arrow_forwardUnpolarized light passes through three polarizing filters. The first filter has its transmission axis parallel to the z direction, the second has its transmission axis at an angle of 30.0 from the z direction, and the third has its transmission axis at an angle of 60.0 from the z direction. If the light that emerges from the third filter has an intensity of 250.0 W/m2, what is the original intensity of the light?arrow_forward
- While outdoors on a sunny day, a student holds a large convex lens of radius 4.0 cm above a sheet of paper to produce a bright spot on the paper that Is 1.0 cm in radius, rather than a sharp focus. By what factor is the electric field in the bright spot of light related to the electric field of sunlight leaving the side of the lens facing the paper?arrow_forwardAn unpolarized beam of light is incident on a stack of ideal polarizing filters. The axis of the first filter is perpendicular to the axis of the last filter in the stack. Find the fraction by which the transmitted beams intensity is reduced in the three following cases. (a) Three filters are in the stack, each with its transmission axis at 45.0 relative to the preceding filter. (b) Four filters are in the stack, each with its transmission axis at 30.0 relative to the preceding filter. (c) Seven filters are in the stack, each with its transmission axis at 15.0 relative to the preceding filter. (d) Comment on comparing the answers to parts (a), (b), and (c).arrow_forwardA linearly polarized microwave of wavelength 1.50 cm is directed along the positive x axis. The electric field vector has a maximum value of 175 V/m and vibrates in the xy plane. Assuming the magnetic field component of the wave can be written in the form B = Bmax sin (kx t), give values for (a) Bmax, (b) k, and (c) .(d) Determine in which plane the magnetic field vector vibrates. (e) Calculate the average value of the Poynting vector for this wave. (f) If this wave were directed at normal incidence onto a perfectly reflecting sheet, what radiation pressure would it exert? (g) What acceleration would be imparted to a 500-g sheet (perfectly reflecting and at normal incidence) with dimensions of 1.00 m 0.750 m?arrow_forward
- What is the physical significance of the Poynting vector?arrow_forwardThe Poynting vector describes a flow of energy whenever electric and magnetic fields are present. Consider a long cylindrical wire of radius r with a current I in the wire, with resistance R and voltage V. From the expressions for the electric field along the wire and the magnetic field around the wire, obtain the magnitude and direction of the Poynting vector at the surface. Show that it accounts for an energy flow into the wire from the fields around it that accounts for the Ohmic heating of the wire.arrow_forwardCheck Your Understanding Although we did no specify the direction in Example 1.7, let’s say the polarizing filter was rotated clockwise by 71.6° to reduce the light intensity by 90.0%. What would be the intensity reduction if the polarizing filter were rotated counterclockwise by 71.6°’arrow_forward
- The axes of four ideal Polaroid sheets are stacked, each at 30°with respect to the previous one. What fraction of initially unpolarizedlight passes through all four sheets?arrow_forward30) A vertically polarized wave comes from the air environment at an angle of 30 degrees to the planar glass-air interface. Wave frequency is 600 THz. (1 THz = 10 ^ 12 Hz). The refractive index of the glass is 1.6 and the electric field amplitude of the incident wave is 50 V /m. Find the instant expression of the H area in the glass. Dik kutuplanmış bir dalga hava ortamından 30 derecelik bir açıyla düzlemsel cam-hava arayüzüne gelmektedir.Dalga frekansı 600 THz dir (1 THz 1012 Hz) camin kırılma indisi 1.6 ve gelen dalganın elektrik alan genligi ise 50V/m dir. Cam içindeki H alanın anlık ifadesini bulunuz? 30 až13.5cos(wt-k2zsindt -k2zcost)A/m O 0.16(-arcos0t-ažcosot)cos(wt - k2zsindt - k2rcos0t)A/m O - klzsinot - k2xcos0t)A/m 0.16(-ažcost-ažcost)cos(wt O 3.16(-ažcosot- aycost)cos(ut - klzsindt- k2rcost)A/m 0.16(-ajcosot-ažcostt)cos(wt - k2rsindt - k2rcost)A/marrow_forwardCertain sunglasses use a polarizing material to reduce the intensity of light reflected from shiny surfaces, such as water or the hood of a car. What orientation of the transmission axis should the material have to be most effective?arrow_forward
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