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exam_2_review [2014/05/14 05:09]
nugentm [Review question 3]
exam_2_review [2014/05/14 14:48] (current)
wikimanager [Review problem 3] added solution
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   * [....] A) Convex. ​   * [....] A) Convex. ​
   * [....] B) Plane. ​   * [....] B) Plane. ​
-  * [....] C) Concave. ​+  * [ <color green>​X</​color> ​] C) Concave. ​
   * [....] D) All of the given answers would work equally as well.    * [....] D) All of the given answers would work equally as well. 
   * [....] E) None of the given answers would burn a hole.    * [....] E) None of the given answers would burn a hole. 
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 You have a choice between two lenses of focal lengths $f_a$ and $f_b = 2 f_a$ to use as objective lens in building a compound microscope. If the magnification you obtain using lens //a// is $M_a$, what will be the magnification when using lens //​b//? ​ You have a choice between two lenses of focal lengths $f_a$ and $f_b = 2 f_a$ to use as objective lens in building a compound microscope. If the magnification you obtain using lens //a// is $M_a$, what will be the magnification when using lens //​b//? ​
   * [....] A) $M_b = \frac{1}{4} M_a$   * [....] A) $M_b = \frac{1}{4} M_a$
-  * [....] B) $M_b = \frac{1}{2} M_a$+  * [ <color green>​X</​color> ​] B) $M_b = \frac{1}{2} M_a$
   * [....] C) $M_b = 8 M_a$   * [....] C) $M_b = 8 M_a$
   * [....] D) $M_b = 4 M_a$    * [....] D) $M_b = 4 M_a$ 
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 Which of the following expressions is correct for the transmitted intensity of an unpolarized beam of light with an intensity $I_i$ passing through a polarizer? ​ Which of the following expressions is correct for the transmitted intensity of an unpolarized beam of light with an intensity $I_i$ passing through a polarizer? ​
   * [....] A) $I_t = 2 I_i$   * [....] A) $I_t = 2 I_i$
-  * [....] B) $I_t = \frac{1}{2} I_i$+  * [ <color green>​X</​color> ​] B) $I_t = \frac{1}{2} I_i$
   * [....] C) $I_t = I_i$   * [....] C) $I_t = I_i$
   * [....] D) $I_t = 4 I_i$   * [....] D) $I_t = 4 I_i$
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   * [....] A) neither spherical nor chromatic aberration. ​   * [....] A) neither spherical nor chromatic aberration. ​
   * [....] B) chromatic aberration, but not spherical aberration. ​   * [....] B) chromatic aberration, but not spherical aberration. ​
-  * [....] C) spherical aberration, but not chromatic aberration.+  * [ <color green>​X</​color> ​] C) spherical aberration, but not chromatic aberration.
   * [....] D) both spherical and chromatic aberration. ​   * [....] D) both spherical and chromatic aberration. ​
  
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   * [....] B) $4.8$ m    * [....] B) $4.8$ m 
   * [....] C) $4.2$ m    * [....] C) $4.2$ m 
-  * [....] D) $-4.2$ m +  * [ <color green>​X</​color> ​] D) $-4.2$ m 
   * [....] E) $5.2$ m    * [....] E) $5.2$ m 
  
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   * [....] B) $-36.4$ cm   * [....] B) $-36.4$ cm
   * [....] C) $-21.2$ cm   * [....] C) $-21.2$ cm
-  * [....] D) $+36.4$ cm+  * [ <color green>​X</​color> ​] D) $+36.4$ cm
   * [....] E) $+21.2$ cm   * [....] E) $+21.2$ cm
  
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 ====Review question 10==== ====Review question 10====
 An object is placed in front of a convex mirror at a distance larger than twice the focal length of the mirror. The image will appear ​ An object is placed in front of a convex mirror at a distance larger than twice the focal length of the mirror. The image will appear ​
   * [....] A) upright and enlarged.  ​   * [....] A) upright and enlarged.  ​
-  * [....] B) upright and reduced.+  * [ <color green>​X</​color> ​] B) upright and reduced.
   * [....] C) inverted and enlarged.   * [....] C) inverted and enlarged.
   * [....] D) inverted and reduced.  ​   * [....] D) inverted and reduced.  ​
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   * [....] A) 2.0    * [....] A) 2.0 
   * [....] B) 1.5    * [....] B) 1.5 
-  * [....] C) 1.0 +  * [ <color green>​X</​color> ​] C) 1.0 
   * [....] D) 0.25   * [....] D) 0.25
   * [....] E) 0.5    * [....] E) 0.5 
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 ====Review question 12==== ====Review question 12====
 A vertically polarized beam of light of intensity $100\frac{\text W}{\,{\text m}^2}$ passes through a polarizer with its transmission axis at 40.0$^\circ$ to the vertical. What is the transmitted intensity of this beam of light? ​ A vertically polarized beam of light of intensity $100\frac{\text W}{\,{\text m}^2}$ passes through a polarizer with its transmission axis at 40.0$^\circ$ to the vertical. What is the transmitted intensity of this beam of light? ​
-  * [....] A) $58.7\frac{\text W}{\,{\text m}^2}$ ​+  * [ <color green>​X</​color> ​] A) $58.7\frac{\text W}{\,{\text m}^2}$ ​
   * [....] B) $0\frac{\text W}{\,{\text m}^2}$ ​   * [....] B) $0\frac{\text W}{\,{\text m}^2}$ ​
   * [....] C) $100\frac{\text W}{\,{\text m}^2}$ ​   * [....] C) $100\frac{\text W}{\,{\text m}^2}$ ​
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   * [....] A) 200 cm    * [....] A) 200 cm 
   * [....] B) 101 cm    * [....] B) 101 cm 
-  * [....] C) 198 cm +  * [ <color green>​X</​color> ​] C) 198 cm 
   * [....] D) 202 cm    * [....] D) 202 cm 
   * [....] E) 2.0 cm   * [....] E) 2.0 cm
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   * [....] C) half as large as his face    * [....] C) half as large as his face 
   * [....] D) four times as large as his face    * [....] D) four times as large as his face 
-  * [....] E) three times as large as his face+  * [ <color green>​X</​color> ​] E) three times as large as his face
  
 <color green></​color>​ <color green></​color>​
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   * [....] B) a short focal length objective and a long focal length eyepiece.   * [....] B) a short focal length objective and a long focal length eyepiece.
   * [....] C) a short focal length objective and a short focal length eyepiece. ​   * [....] C) a short focal length objective and a short focal length eyepiece. ​
-  * [....] D) a long focal length objective and a short focal length eyepiece.+  * [ <color green>​X</​color> ​] D) a long focal length objective and a short focal length eyepiece.
  
 <color green></​color> ​ <color green></​color> ​
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   - A lens with a negative focal length.   - A lens with a negative focal length.
-    * <color green>...</​color> ​+    * <color green>diverging lens</​color> ​
   - A problem in lenses where different colors of light are focused to different focal points. ​   - A problem in lenses where different colors of light are focused to different focal points. ​
-    * <color green>...</​color> ​+    * <color green>chromatic aberration</​color> ​
   - The angle of incidence of light such that after striking a surface the reflected light is completely polarized.   - The angle of incidence of light such that after striking a surface the reflected light is completely polarized.
-    * <color green>...</​color> ​+    * <color green>Brewster'​s angle</​color> ​
   - Reflection from a rough surface such that light is sent out in a variety of directions.   - Reflection from a rough surface such that light is sent out in a variety of directions.
-    * <color green>...</​color> ​+    * <color green>diffuse reflection</​color> ​
   - Light rays converge towards this type of object. The sign convention for the distance to the object in this case is negative.   - Light rays converge towards this type of object. The sign convention for the distance to the object in this case is negative.
-    * <color green>...</​color> ​+    * <color green>virtual object</​color> ​
   - The ability of a lens to refract light (commonly measured in diopters)   - The ability of a lens to refract light (commonly measured in diopters)
-    * <color green>...</​color> ​+    * <color green>refractive power</​color> ​
   - A problem in lenses and mirrors of a particular shape where light further away from the principal axis is focused to a different point than light closer to the principal axis.   - A problem in lenses and mirrors of a particular shape where light further away from the principal axis is focused to a different point than light closer to the principal axis.
-    * <color green>...</​color> ​+    * <color green>spherical aberration</​color> ​
   - The length of this device is the sum of the two focal lengths of the lenses used to make it   - The length of this device is the sum of the two focal lengths of the lenses used to make it
-    * <color green>...</​color> ​+    * <color green>telescope</​color> ​
   - A property of a material that is related to how fast light travels in the material   - A property of a material that is related to how fast light travels in the material
-    * <color green>...</​color> ​+    * <color green>index of refraction</​color> ​
   - Colorful object seen in the sky due to the dispersion of light in raindrops.   - Colorful object seen in the sky due to the dispersion of light in raindrops.
-    * <color green>...</​color> ​+    * <color green>rainbow</​color> ​
  
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exam_2_review.1400044188.txt.gz ยท Last modified: 2014/05/14 05:09 by nugentm