Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Chapter 30, Problem 14E
To determine
The angle at which light ray turned.
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A light ray travels from air (n=1.00) into a crown glass (n=1.52) with an angle of incidence of 49 degrees. The light ray continues to travel through the crown glass material into the diamond (n=2.42). At what angle does the light ray make with the normal line as it enters the diamond?
A light ray travels from air (n=1.00) into a crown glass (n=1.52) with an angle of incidence of 49 degrees. The light ray continues to travel through the crown glass material into the diamond (n=2.42). At what angle does the light ray make with the normal line as it enters the diamond?
a.) 12 deg
b,) 30 deg
c.) 48 deg
d.) 18 deg
Two people stand 5.0 m apart and 3.0 m away from a large plane mirror in a dark room.
At what angle of incidence should one of them shine a flashlight on the mirror so that the reflected beam directly strikes the other person?
Chapter 30 Solutions
Essential University Physics (3rd Edition)
Ch. 30.1 - Prob. 30.1GICh. 30.2 - The figure shows the path of a light ray through...Ch. 30.3 - The glass prism in Fig. 30.11 has n = 1.5 and is...Ch. 30.4 - Prob. 30.4GICh. 30 - Prob. 1FTDCh. 30 - Why does a spoon appear bent when its in a glass...Ch. 30 - Prob. 3FTDCh. 30 - Prob. 4FTDCh. 30 - You send white light through two identical glass...Ch. 30 - Prob. 6FTD
Ch. 30 - Prob. 7FTDCh. 30 - Why are polarizing sunglasses better than glasses...Ch. 30 - Under what conditions will the polarizing angle be...Ch. 30 - Through what angle should you rotate a mirror so...Ch. 30 - Prob. 12ECh. 30 - To what angular accuracy must two ostensibly...Ch. 30 - Prob. 14ECh. 30 - In which substance in Table 30.1 does the speed of...Ch. 30 - Information in a compact disc is stored in pits"...Ch. 30 - Light is incident on an air-glass interface, and...Ch. 30 - A light ray propagates in a transparent material...Ch. 30 - Light propagating in the glass (n = 1.52) wall of...Ch. 30 - Prob. 20ECh. 30 - Find the refractive index of a material for which...Ch. 30 - Prob. 22ECh. 30 - Prob. 23ECh. 30 - What is the critical angle for light propagating...Ch. 30 - Prob. 25ECh. 30 - Blue and red laser beams strike an air-glass...Ch. 30 - White light propagating in air is incident at 45...Ch. 30 - Suppose the 60 angle in Fig. 30.18 is changed to...Ch. 30 - The refractive index of a human cornea is 1.40. If...Ch. 30 - Two plane mirrors make an angle . A light ray...Ch. 30 - An unlabeled bottle of liquid has spilled, and...Ch. 30 - A meter stick lies on the bottom of the...Ch. 30 - Prob. 33PCh. 30 - At the aquarium where you work, a fish has gone...Ch. 30 - Prob. 35PCh. 30 - You've dropped your car keys at night off the end...Ch. 30 - Laser eye surgery uses ultraviolet light with...Ch. 30 - Prob. 38PCh. 30 - Repeat Problem 38 for the case n = 1.75, = 40,...Ch. 30 - Find the minimum refractive index for the prism in...Ch. 30 - Where and in what direction would the main beam...Ch. 30 - Find the speed of light in a material for which...Ch. 30 - Prob. 43PCh. 30 - For the interface between air (refractive index 1)...Ch. 30 - A scuba diver sets off a camera flash at depth h...Ch. 30 - Suppose the red and blue beams of Exercise 26 are...Ch. 30 - In cataract surgery, ophthalmologists replace the...Ch. 30 - In a ruby laser, light is produced in a solid rod...Ch. 30 - Reconsider Example 30.4, now in a glass with n700...Ch. 30 - A cylindrical tank 2.4 m deep is full to the brim...Ch. 30 - For what diameter tank in Problem 50 will sunlight...Ch. 30 - Light is incident from air on the flat wall of a...Ch. 30 - Prob. 53PCh. 30 - Find an expression for the displacement x in Fig....Ch. 30 - Prob. 55PCh. 30 - (a) Differentiate the result of Problem 55 to show...Ch. 30 - Prob. 57PCh. 30 - Prob. 58PCh. 30 - Fermat's principle states that a light ray's path...Ch. 30 - Prob. 60PCh. 30 - A slab of transparent material has thickness d and...Ch. 30 - For common materials like glass, the wavelength...Ch. 30 - Figure 30.25a depicts lights path over a hot road,...Ch. 30 - Prob. 64PPCh. 30 - Figure 30.25b shows how continuous refraction in...Ch. 30 - The refractive index in the ionosphere is strongly...
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- A light ray strikes a plane mirror lying flat on a horizontal floor, making an angle of incidence of θi= 61.8°. After reflecting from the mirror, the ray makes a spot on a vertical wall. The wall is a horizontal distance d= 1.08 m from the point of reflection, as shown. How high from the floor is the spot on the wall? (Neglect the thickness of the mirror.)arrow_forwardWhat is the measure of the incident angle for a light ray that bounces back on itself in a concave mirror? A. 0° B. 45° C. 90° D. 180°arrow_forwardTwo plane mirrors make an angle α = 54.0◦ between them. A ray of light incident on one of the mirrors is reflected and hits the second mirror. Find the angle β between the ray incident on the first mirror and the ray reflected off of the second mirror. (a) 36.0◦ (b) 72.0◦ (c) 54.0◦ (d) 24.0◦ (e) None of the above.arrow_forward
- Light, when incident on a given surface, presents a reflected and a refracted component. When the reflected beam is perpendicular to the refracted beam, the angle of incidence θᵢ is called Brewster's angle. If a beam of light is initially in air with index of refraction n₁ = 1 and is incident on a glass surface (index of refraction n₂ = 1.5), Brewster's angle is: a)82.9° b)36.3° c)75.4° d)62.9° e)56.3° f)45.7°arrow_forwardIf an incoming beam of light strikes a flat mirror with an angle of 42 degrees with respect to the normal, what is the outgoing angle with respect to the incoming ray? a) 42 b) 132 c) 84 d) 90arrow_forwardA block of crown glass is immersed in water as in the figure below. A light ray is incident on the top face at an angle of θ1= 41° with the normal and exits the block at point P. Find the angle of refraction θ2 of the light ray leaving the block at P. 80.2° 41° 43.3° 68.9°arrow_forward
- A fish that is d=d= 2.9 m below the surface looks up and sees a child fishing from the shore. What angle of incidence (θ1) does the ray from the person’s face make with the perpendicular to the water at the point where the ray enters? The angle of refraction (θ2) between the ray in the water and the perpendicular to the water is 35.8°. θ1 = 51.1 What is the height of the person’s head above the water? Assume the person is standing L= 7.4 m away from the point where the incident ray intersects the water. h = marrow_forwardWhat happens when light moves from a medium with a high refractive index into a medium with a lower refractive index at an angle of incidence of less than 90°? a) The ray of light speeds up and bends towards the normal. b) The ray of light continues on the exact same path. c) The ray of light speeds up and bends away from the normal. d) The ray of light continues on the exact same path, but at a faster speed.arrow_forwardWhat happens when light moves from a medium with a low refractive index into a medium with a higher refractive index at an angle of incidence = 90°? a) The ray of light speeds up and bends away from the normal. b) The ray of light continues on the exact same path, but at a slower speed. c) The ray of light continues on the exact same path, but at a faster speed. d) The ray of light slows down and bends towards the normal.arrow_forward
- A fiber optic cable is composed of a core with an index of refraction of 1.80 and cladding that has an index of refraction of 1.36. Which of the following best describes angles of incidence θ that will result in total internal reflection within the fiber optic core? a. θ>41∘ b. θ<41∘ c. θ>49∘ d. θ<49∘arrow_forwardThe index of refraction of air is 1.00, and of water is 1.33. If a ray of light travelling through the air strikes the surface of the water at an angle of incidence of 38°, what will be the angle of refraction as the light enters the water? a) 46° b) 38° c) 28° d) 27.57°arrow_forwardA converging lens is placed 36.0 cm to the right of a diverging lens of focal length 7.0 cm. A beam of parallel light enters the diverging lens from the left, and the beam is again parallel when it emerges from the converging lens. Calculate the focal length of the converging lens. f = _____ cmarrow_forward
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