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exam_2_review [2014/05/14 05:12] nugentm [Review question 11] |
exam_2_review [2014/05/14 14:48] (current) wikimanager [Review problem 3] added solution |
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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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