Chap. 24 Conceptual Modules Giancoli

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ConcepTest <strong>24</strong>.5b Diffraction II Blue light of wavelength λ passes through a single slit of width d and forms a diffraction pattern on a screen. If the blue light is replaced by red light of wavelength 2λ, the original diffraction pattern can be reproduced if the slit width is changed to: 1) d/4 2) d/2 3) no change needed 4) 2 d 5) 4 d d sinθ = mλ (minima) If λ → 2λ then we must have d → 2d for sin θ to remain unchanged (and thus give the same diffraction pattern). d θ θ
ConcepTest <strong>24</strong>.6 Imagine holding a circular disk in a beam of monochromatic light. If diffraction occurs at the edge of the disk, the center of the shadow is Diffraction Disk 1) darker than the rest of the shadow 2) a bright spot 3) bright or dark, depends on the wavelength 4) bright or dark, depends on the distance to the screen
Page 1 and 2: ConcepTest 24.1 Superposition If wa
Page 3 and 4: ConcepTest 24.2a The two waves show
Page 5 and 6: ConcepTest 24.2b Two light sources
Page 7 and 8: ConcepTest 24.3a In a double-slit e
Page 9 and 10: ConcepTest 24.3b Double Slits II If
Page 11 and 12: In a double-slit experiment, what p
Page 13 and 14: An interference pattern is seen fro
Page 15 and 16: ConcepTest 24.5a The diffraction pa
Page 17: ConcepTest 24.5b Diffraction II Blu
Page 21 and 22: ConcepTest 24.7a Parallel Slides I
Page 23 and 24: ConcepTest 24.7b A laser shines on
Page 25 and 26: ConcepTest 24.7c Consider two ident
Page 27 and 28: ConcepTest 24.7d Two identical micr
Page 29 and 30: ConcepTest 24.8 If unpolarized ligh

Chap. 24 Conceptual Modules Giancoli

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