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Chapter 35: Q79P (page 1078)
If mirror in a Michelson interferometer (fig 35-21) is moved through , a shift of 792 bright fringes occurs. What is the wavelength of the light producing the fringe pattern?
The wavelength of light producing is .
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In the double-slit experiment of Fig. 35-10, the viewing screen is at distance , point P lies at distance role="math" localid="1663143982922" from the center of the pattern, the slit separation d is , and the wavelength is . (a) Determine where point P is in the interference pattern by giving the maximum or minimum on which it lies, or the maximum and minimum between which it lies. (b) What is the ratio of the intensityat point P to the intensity at the centerof the pattern?
Three electromagnetic waves travel through a certain point P along an x-axis. They are polarized parallel to a y-axis, with the following variations in their amplitudes. Find their resultant at P.
Figure 35-56a show two light rays that are initially in phase as they travel upward through a block of plastic, with wavelength 400 nm as measured in air. Light ray exits directly into air. However, before light ray exits into air, it travels through a liquid in a hollow cylinder within the plastic. Initially the height of the liquid is 40.0 , but then the liquid begins to evaporate. Let be the phase difference between raysand once they both exit into the air. Figure 35-56b, shows versus the liquid’s height until the liquid disappears, with given in terms of wavelength and the horizontal scale set by.What are (a) the index of refraction of the plastic and (b) the index of refraction of the liquid?
Two waves of light in air, of wavelength , are initially in phase. They then both travel through a layer of plastic as shown in Fig. 35-36, with , , , and. (a) What multiple of gives their phase difference after they both have emerged from the layers? (b) If the waves later arrive at some common point with the same amplitude, is their interference fully constructive, fully destructive, intermediate but closer to fully constructive,or intermediate but closer to fully destructive?
The wavelength of yellow sodium light in air is 589 nm. (a) What is its frequency? (b) What is its wavelength in glass whose index of refraction is 1.52? (c) From the results of (a) and (b), find its speed in this glass.
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