5th Edition

ISBN: 9780136782490

Author: Walker

Publisher: PEARSON CO

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In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will p…

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Chapter 28, Problem 38PCE

Submarine Saver A naval engineer is testing an nonreflective coating for submarines that would help them avoid detection by producing destructive interference for sonar waves that have a frequency of 512 Hz and travel at 1480 m/s. If there is a phase change for waves reflected from both the top and bottom surfaces of the coating what is the minimum thickness of the coating? For sonar waves let n= 1 00 and n_coating= 13 5.

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Chapter 28, Problem 37PCE

Chapter 28, Problem 39PCE

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Question A6 It is desired to apply an anti-reflection coating on a glass lens used in air, by coating the lens with a thin film of magnesium fluoride of refractive index n = 1.37; (assume the glass has refractive index larger than nF). Write down the formula for optical path difference between waves reflected at top and bottom of the film, and use this to calculate the minimum required thickness of the coating to give a reflectance minimum for normal-incidence green light of wavelength 550 nm in air.

Two in phase, monochromatic light rays traverse transparent materials with differing indices of refraction but a common length. The wavelength of the light is 1 = 500. nm . Far from the materials the light rays are combined without further phase shifts and there is interference. a. If n =1.50 n, =1.625 and L=12.0µm what is the phase difference in wavelengths ( N, - N, )? b. If n, =1.475 =1.60 and L=12.00µm what is the phase difference in wavelengths ( N2 - N, )? c. If n =1.475 n, =1.60 and L= 6.00µm what is the phase difference in wavelengths ( N, - N )? d. Rank the three cases above in terms of brightness for the combined light. n2 7.

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Chapter 28 Solutions

EP PHYSICS -MOD.MASTERING (18W)

Ch. 28.1 - Two beams of light that have the same phase are...Ch. 28.2 - If the wavelength in a two-slit experiment is...Ch. 28.3 - For each of the cases shown in Figure 28-22, state...Ch. 28.4 - If the wavelength of light passing through a...Ch. 28.5 - If you view the world with blue light, is your...Ch. 28.6 - Suppose a diffraction grating has slits separated...Ch. 28 - Prob. 1CQ Ch. 28 - What happens to the two-slit interference pattern...Ch. 28 - If a radio station broadcasts its signal through...Ch. 28 - How would you expect the interference pattern of a...

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