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1. Which statement is true for the index of refraction? a) All types of glass have the same index of refraction. b) The index of refraction is the same for different wavelengths of light. c) The index of refraction is a dimensionless number greater than or equal to 1. d) The index of refraction is a dimensionless number less than 1.0. 2. Total internal reflection can occur only when a) one of the two refractive media is air. b) light is travelling from a more optically dense medium into a less optically dense medium. c) a light of low intensity is used. d) A light of high intensity is used. 3. As straight water waves pass through an opening and spread out in circular wave fronts, the waves undergo a) reflection. c) refraction. b) refraction. d) diffraction.

1. Which statement is true for the index of refraction? a) All types of glass have the same index of refraction. b) The index of refraction is the same for different wavelengths of light. c) The index of refraction is a dimensionless number greater than or equal to 1. d) The index of refraction is a dimensionless number less than 1.0. 2. Total internal reflection can occur only when a) one of the two refractive media is air. b) light is travelling from a more optically dense medium into a less optically dense medium. c) a light of low intensity is used. d) A light of high intensity is used. 3. As straight water waves pass through an opening and spread out in circular wave fronts, the waves undergo a) reflection. c) refraction. b) refraction. d) diffraction.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. Which statement is true for the index of refraction? a) All types of glass have the same index of refraction. b) The index of refraction is the same for different wavelengths of light. c) The index of refraction is a dimensionless number greater than or equal to 1. d) The index of refraction is a dimensionless number less than 1.0. 2. Total internal reflection can occur only when a) one of the two refractive media is air. b) light is travelling from a more optically dense medium into a less optically dense medium. c) a light of low intensity is used. d) A light of high intensity is used. 3. As straight water waves pass through an opening and spread out in circular wave fronts, the waves undergo a) reflection. c) refraction. b) refraction. d) diffraction. 4. Which frequencies will best diffract around corners and fill a room? a) low frequencies. b) medium to high frequencies c) high frequencies. d) both low and high frequencies diffract the same amount. 5. A group of students in Mr. Sawinski's SPH4U class uses a double slit and a laser to produce bright fringes on a distant screen. To double the fringe spacing, the students should a) decrease the slit spacing by half. b) decrease the laser wavelength by half. c) decrease the distance to the screen by half. d) increase the slit spacing.
Transcribed Image Text:1. Which statement is true for the index of refraction? a) All types of glass have the same index of refraction. b) The index of refraction is the same for different wavelengths of light. c) The index of refraction is a dimensionless number greater than or equal to 1. d) The index of refraction is a dimensionless number less than 1.0. 2. Total internal reflection can occur only when a) one of the two refractive media is air. b) light is travelling from a more optically dense medium into a less optically dense medium. c) a light of low intensity is used. d) A light of high intensity is used. 3. As straight water waves pass through an opening and spread out in circular wave fronts, the waves undergo a) reflection. c) refraction. b) refraction. d) diffraction. 4. Which frequencies will best diffract around corners and fill a room? a) low frequencies. b) medium to high frequencies c) high frequencies. d) both low and high frequencies diffract the same amount. 5. A group of students in Mr. Sawinski's SPH4U class uses a double slit and a laser to produce bright fringes on a distant screen. To double the fringe spacing, the students should a) decrease the slit spacing by half. b) decrease the laser wavelength by half. c) decrease the distance to the screen by half. d) increase the slit spacing.
6. The colours in anti-reflective coatings on eyeglasses and solar cells, and the colours seen as sunlight shines on a soap bubble can be explained by a) light interfering as it reflects within the film. b light diffracting within a thin film. c) light dispersing across a thick film. d) light polarizing inside a thin film. 7. To increase the distance of the first dark fringe from the central maximum in a single-slit diffraction pattern, you should c) use a light of linger wavelength. d) replace the slit with a wider opening. a) use more intense light. b) use a light of higher frequency. 8. In the equation må wsinem, the variable w represents т a) the width of the central bright spot. c) the distance between the adjacent slits. b) the diameter of the beam. d) the width of the diffraction grating. 9. An electromagnetic wave with frequency 1.0 X 107 Hz and wavelength 30 m should be classified as a a) radio wave. c) visible light wave. b) microwave. d) gamma ray. 10. Polarizing sunglasses work by a) blocking the most energetic wavelengths of light. b) blocking the light whose electric field is aligned in a certain direction. c) reducing the intensity of all incoming light waves by a factor of three. d) creating interference between incident and reflected waves.
Transcribed Image Text:6. The colours in anti-reflective coatings on eyeglasses and solar cells, and the colours seen as sunlight shines on a soap bubble can be explained by a) light interfering as it reflects within the film. b light diffracting within a thin film. c) light dispersing across a thick film. d) light polarizing inside a thin film. 7. To increase the distance of the first dark fringe from the central maximum in a single-slit diffraction pattern, you should c) use a light of linger wavelength. d) replace the slit with a wider opening. a) use more intense light. b) use a light of higher frequency. 8. In the equation må wsinem, the variable w represents т a) the width of the central bright spot. c) the distance between the adjacent slits. b) the diameter of the beam. d) the width of the diffraction grating. 9. An electromagnetic wave with frequency 1.0 X 107 Hz and wavelength 30 m should be classified as a a) radio wave. c) visible light wave. b) microwave. d) gamma ray. 10. Polarizing sunglasses work by a) blocking the most energetic wavelengths of light. b) blocking the light whose electric field is aligned in a certain direction. c) reducing the intensity of all incoming light waves by a factor of three. d) creating interference between incident and reflected waves.
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