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Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
24
The Wave Nature of Light
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24-3: Double-Slit Interference
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24-4: Visible Spectrum; Dispersion
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24-5: Single-Slit Diffraction
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24-6 and 24-7: Diffraction Gratings
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24-8: Thin-Film Interference
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24-9: Michelson Interferometer
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24-10: Polarization
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 8
Q

Light of wavelength λ\lambda passes through a pair of slits separated by 0.17 mm, forming a double-slit interference pattern on a screen located a distance 37 cm away. Suppose that the image in Fig. 24–9a is an actual-size reproduction of this interference pattern. Use a ruler to measure a pertinent distance on this image; then utilize this measured value to determine λ\lambda (nm).

(a) Interference fringes produced by a double-slit experiment and detected by photographic film placed on the viewing screen. The arrow marks the central fringe.
Figure 24-9 (a) Interference fringes produced by a double-slit experiment and detected by photographic film placed on the viewing screen. The arrow marks the central fringe.
A
6.6×10−7 m6.6 \times 10^{-7} \textrm{ m}
Giancoli 7th Edition, Chapter 24, Problem 8 solution video poster
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