Mastery Quiz (See related pages) 1 In a vacuum the speed of light waves compared to the speed of radio waves is A) faster B) slower C) the same 2 Electromagnetic waves A) need a medium such as water to propagate B) travel faster in a medium such as water than they do in a vacuum C) are longitudinal waves D) travel at the same speed in a vacuum regardless of wavelength 3 Compared to blue light, the wavelength of red light is A) longer B) the same length C) shorter 4 The part of the eye that distinguishes between different colors of light is the A) cornea B) lens C) cones D) rods 5 The part of the eye that is responsible for nighttime and peripheral vision is the A) cornea B) lens C) cones D) rods 6 The pigments used in paints or dyes used on fabrics work by A) selective absorption B) birefringence C) polarization D) interference 7 In order to observe the interference of light the dimensions of the slits must be A) very large B) very small 8 Thin films are used as coatings on lenses A) to keep people from seeing your eyes through the lenses B) to increase the amount of light that is reflected by the lens C) to reduce the amount of light that is reflected by the lens D) to polarize the light reflected by the lens 9 The production of a series of dark and light fringes by a single slit is called A) diffraction B) polarization C) birefringence D) reflection 10 Polarized light has the electric field vector alignment A) randomly distributed in all possible directions B) aligned along one particular direction
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