EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Students have asked these similar questions
If the apex angle of a prism is $ = 75° (see Fig. 23–63),
what is the minimum incident angle for a ray if it is to emerge
from the opposite side (i.e., not be totally internally
reflected), given n = 1.58?
FIGURE 23-63
Problem 77.
8) (a) Show that if the crystal undergoes volume expansion, then the reflected beam is rotated by the
angle: 80 =-.tan0.8T, where ß is the volume coefficient of expansion, T is the temperature
and the Bragg angle.
(b) The Bragg angle for a certain reflection from a powder specimen of Cu is 47.75° at a
temperature of 293 K and 46.60° at 1273 K. Calculate the coefficient of linear thermal expansion
of Cu (Use the angle in radian).
10. A light ray of given wavelength, initially in air, strikes a 90°
prism at P (see Fig. 39-53) and is refracted there and at Q to
such an extent that it just grazes the right-hand prism surface
at Q. (a) Determine the index of retraction of the prism for
this wavelength in terms of the angle of incidence , that
gives rise to this situation. (b) Give a numerical upper bound
for the index of refraction of the prism. Show, by ray dia-
grams, what happens if the angle of incidence at P is
(c) slightly greater or (d) slightly less than 0₁.
90
FIGURE 39-53. Problem 10.
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- (c) A neighbouring building that rises some 9.0 m above the roof accommo- dating the solar generator, is located at 30° West of North some 10.0 m from the solar generator. Will the building cause shading losses within the high illumination hours during any part of the year?arrow_forwardA ray of light is refracted through three different materials (Fig. 23-49). Which material has (a) the largest index of refraction, (b) the smallest? FIGURE 23–49 Question 14.arrow_forwardStructure factor of diamond. The crystal structure of diamond is described in Chapter 1. The basis consists of eight atoms if the cell is taken as the conventional cube. (a) Find the structure factor S of this basis. (b) Find the zeros of S and show that the allowed reflections of the diamond structure satisfy v, + U2+ Uz = 4n, where all indices are even and n is any integer, or else all indices are odd (Fig. 18). (Notice that h, k, l may be written for v, v2, Uz and this is often done.)arrow_forward
- Light is incident on an equilateral glass prism at a 45.0° angle to one face, Fig. 23–64. Calculate the angle at which light emerges from the opposite face. Assume that n = 1.54. 45.0° FIGURE 23-64 Problems 80 and 81.arrow_forwardWhen you look at the Moon's reflection from a ripply sea, it appears elongated (Fig. 23–47). Explain. FIGURE 23-47 Question 7.arrow_forwardCalculate the contact angle θ for olive oil if capillaryaction raises it to a height of 7.07 cm in a glass tube with aradius of 0.100 mm. Is this value consistent with that for mostorganic liquids?arrow_forward
- You look into an aquarium and view a fish inside. One ray of light from the fish is shown emerging from the tank in Fig. 23-48. The apparent position of the fish is also shown (dashed ray). In the drawing, indicate the approximate position of the actual fish. Briefly justify your answer. Image FIGURE 23-48 Question 12.arrow_forwardThe hot-water needs of a household are to be met by heating water at 55°F to 180°F by a parabolic solar collector at a rate of 4 lbm/s. Water flows through a 1.25-in-diameter thin aluminum tube whose outer surface is black-anodized in order to maximize its solar absorption ability. The centerline of the tube coincides with the focal line of the collector, and a glass sleeve is placed outside the tube to minimize the heat losses. If solar energy is transferred to water at a net rate of 400 Btu/h per ft length of the tube, determine the required length of the parabolic collector to meet the hot-water requirements of this house.arrow_forwardProblem 2 . (III) A beam of light enters the end of an optic fiber as shown in Fig. 32-59. (a) Show that we can guarantee total internal reflection at the side surface of the material (at point A), if the index of refraction is greater than about 1.42. In other words, regardless of the angle a, the light beam reflects back into the material at point A, assuming air outside. FIGURE 32-59 Problem 66. A B L ident Air Transparent o dose materialarrow_forward
- 106 In Fig. 33-78, where n, = 1.70, n2 = 1.50, and nz = 1.30, light re- %3D fracts from material 1 into material 2. If it is incident at point A at the critical angle for the interface be- tween materials 2 and 3, what are (a) the angle of refraction at point B and (b) the initial angle 0? If, in- stead, light is incident at B at the critical angle for the interface between materials 2 and 3, what are (c) the angle of refraction at point A and (d) the initial angle e? If, instead of all that, light is incident at point A at Brewster's angle for the interface between materials 2 and 3, what are (e) the angle of refraction at point B and (f) the initial angle 6? Figure 33-78 Problem 106.arrow_forward43 – 44. If a ray of light from a material with n = 1.2 points at an angle of incidence of 25° would have an angle of refraction of 40° from a second material, find the index of refraction of the second material. O n=1.44 O n=0.74 O n=0.79 O n=0.75arrow_forwardExplain the effect of molecular weight concentration on the refractive index e 9:50arrow_forward
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