Exam 11: Properties of Light
Exam 1: The Electric Field I: Discrete Charge Distributions87 Questions
Exam 2: The Electric Field II: Continuous Charge Distributions75 Questions
Exam 3: Electric Potential108 Questions
Exam 4: Capacitance73 Questions
Exam 5: Electric Current and Direct-Current Circuits160 Questions
Exam 6: The Magnetic Field71 Questions
Exam 7: Sources of the Magnetic Field115 Questions
Exam 8: Magnetic Induction84 Questions
Exam 9: Alternating-Current Circuits119 Questions
Exam 10: Maxwells Equations and Electromagnetic Waves61 Questions
Exam 11: Properties of Light116 Questions
Exam 12: Optical Images143 Questions
Exam 13: Interference and Diffraction116 Questions
Exam 14: Wave Particle Duality and Quantum Physics153 Questions
Exam 15: Applications of the Schrodinger Equation54 Questions
Exam 16: Atoms128 Questions
Exam 17: Molecules44 Questions
Exam 18: Solids and the Theory of Conduction83 Questions
Exam 19: Relativity83 Questions
Exam 20: Nuclear Physics135 Questions
Exam 21: Elementary Particles and the Beginning of the Universe68 Questions
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A 6 prism has a refractive index of 1.52. Calculate the angle of incidence for the initial light ray that is then refracted inside the prism and just undergoes total internal reflection at the opposite face of the prism.
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Two polarizers have their transmission axes at an angle . Unpolarized light of intensity I is incident on the first polarizer. What is the intensity of the light transmitted by the second polarizer?
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Use the following figure below for the next three problems
The figure shows a cross-section of a fiber optic.
-A fiber optic is made by cladding a thin fiber core of refractive index n1 = 1.45 with a material of refractive index n2 = 1.38. What is the critical angle, c, at the core-cladding interface?
(Multiple Choice)
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The angle of incidence 1 that will cause the unpolarized light to be reflected as completely plane-polarized light is called
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A plane wavefront of light (AA') approaches an air-water interface as shown. n < n'. The refracted wave is best represented by
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If the incident beam in the figure is unpolarized and the reflected beam is completely plane polarized, the index of refraction of the glass must be
(Multiple Choice)
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A ray of light traveling in air enters the end of a rectangular block of a material that has an idex of refraction n = 1.35. The largest value of the angle for which total internal reflection occurs at the upper surface of the material is approximately
(Multiple Choice)
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Use the following figure below for the next three problems
The figure shows a cross-section of a fiber optic.
-A fiber optic is made by cladding a thin fiber core of refractive index n1 = 1.45 with a material of refractive index n2 = 1.38. What is the maximum incident angle, , so that the light ray is totally internally reflected inside the fiber?
(Multiple Choice)
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From directly above, you're watching a fish swim 1.83 m beneath the surface of a clear lake (n = 1.33). How far beneath the surface does the fish seem to be?
(Multiple Choice)
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A ray of monochromatic light in air falls on the upper surface of two parallel-sided slabs of transparent material, as shown in the diagram. The angle of refraction in the lower slab is approximately
(Multiple Choice)
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Use the following figure below for the next three problems
The figure shows a cross-section of a fiber optic.
-A fiber optic is made by cladding a thin fiber core of refractive index n1 = 1.45 with a material of refractive index n2 = 1.38. The numerical aperture of a fiber optic is defined as NA = nair sin m, where m is the maximum incident angle so that the light ray is totally internally reflected inside the fiber. The NA for the fiber is
(Multiple Choice)
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The wavelength of green light in air is 500 nm. The wavelength of this light in glass of index of refraction 1.60 is approximately
(Multiple Choice)
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"To find the value of the resultant displacement for overlapping waves at any point at a particular instant, it is only necessary to add the values of the displacements for the individual waves." This is a statement of
(Multiple Choice)
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Light that has been traveling in a medium with an index of refraction n2 is incident on the boundary surface of another medium with an index of refraction n1. Given a sufficient angle of incidence, which of the following conditions must be satisfied for total internal reflection to occur?
(Multiple Choice)
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The optical phenomenon that is usually cited as demonstrating the transverse wave nature of light is
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Communications satellites are usually placed in geosynchronous orbits, a distance of 4.43 * 107 m from the center of Earth. What is the time lag for a signal sent from one point on Earth's surface to another via such a satellite? (The radius of Earth RE = 6.370 *106 m.)
(Multiple Choice)
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Mission Control sends a brief wake-up call to astronauts in a distant spaceship. Five seconds after the call is sent, Mission Control hears the waking groans of the astronauts. How far away (at most) from Earth is the spaceship?
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An "X" is marked on the bottom of a glass container. A microscope is adjusted so that it is focused on the "X." A liquid is now poured into the glass to a depth of 6.00 cm. If the microscope has to be backed up by a distance of 1.50 cm to refocus on the "X," then calculate the refractive index of the liquid.
(Multiple Choice)
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Light is incident at an angle of 60 at an air to glass interface. If the angle of refraction inside the glass is 32 , then calculate the speed of light within the glass.
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Sound waves differ from light waves in many respects. One important difference is that sound waves cannot
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