conceptuallightandquantum

conceptuallightandquantum - TYPICAL CONCEPTUAL QUESTIONS...

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TYPICAL CONCEPTUAL QUESTIONS FOR PHYSICS I REGULAR QUESTIONS TAKEN FROM CUTNELL AND JOHNSON LIGHT AND QUANTUM CONTENT STANDARD VI A LIGHT 1. Which one of the following phrases most accurately describes the term wave front ? A) the surface of a plane mirror B) the surface of a convex mirror C) a surface upon which a wave is incident D) a surface of constant phase within a wave E) a surface that is parallel to the direction of wave propagation 2. Which one of the following statements concerning rays is false? A) Rays point in the direction of the wave velocity. B) Rays point outward from the wave source. C) Rays are parallel to the wave front. D) Rays are radial lines that originate from a point source of waves. E) Rays for a plane wave are parallel to each other. 3. Which one of the following statements concerning the image formed by a concave spherical mirror is true? A) When the object distance is less than the focal length, the image is virtual. B) When the object distance is larger than the focal length, the image is virtual. C) When the object is at the center of curvature, the image is formed at infinity. D) When the object distance is less than the focal length, the image is inverted relative to the object. E) When the object distance is larger than the focal length, the image is upright relative to the object. Page 1
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4. Santa Claus looks at his reflection in a spherical Christmas tree ornament. Which one of the following statements concerning Santa's image is true? A) The image must be real. B) The image is farther from the ornament than Santa is. C) The image is larger than Santa. D) The image must be inverted. E) The image must be smaller than Santa. Use the following to answer questions 5-7: An object is placed in front of a concave spherical mirror as shown below. The three rays 1 , 2 , and 3 , leave the top of the object and, after reflection, converge at a point on the top of the image. Ray 1 is parallel to the principal axis, ray 2 passes through F , and ray 3 passes through C . 5. Which ray(s) will pass through F after reflection? A) 1 only B) 2 only C) 3 only D) both 1 and 2 E) 1 , 2 , and 3 6. Which ray(s) will reflect back on itself (themselves)? A) 1 only B) 2 only C) 3 only D) both 1 and 2 E) 1 , 2 , and 3 7. Which one of the following groups of terms best describes the image? A) real, upright, enlarged D) real, inverted, enlarged B) real, inverted, reduced E) virtual, inverted, reduced C) virtual, upright, enlarged 8. Which one of the following statements concerning a virtual image produced by a mirror is true?
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This note was uploaded on 03/14/2011 for the course PHYSICS 105 taught by Professor Kruse,m during the Spring '08 term at Duke.

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conceptuallightandquantum - TYPICAL CONCEPTUAL QUESTIONS...

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