Quiz7 C - Exam Quiz 7 Physics 2Ca Fall 2007 Name MULTIPLE...

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Exam Quiz 7, Physics 2Ca, Fall 2007 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1)What is a WRONG statement? A)Out of two identically shaped pieces ot transparent materials, the one with the higher index of refraction is likely to be more sparkling. B)If you scratch the outside of the reflecting surface of a prism used for total internal reflection, light is likely to start leaking through the scratch. C)Optical fibers can carry much more information that copper wires because frequency of light is much higher than the highest frequency that electrical current in a wire can practically have. D)Suggesting that the refractive index of glass decreases with the wavelength of light, we must conclude that in the visible specrtum, the critical angle in glass (for total internal reflection) is smallest for violet light. 1)
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