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Chapter 35: Q17P (page 1075)
In Fig. 35-37, two radio frequency point sources and , separated by distance , are radiating in phase with . A detector moves in a large circular path around the two sources in a plane containing them. How many maxima does it detect?
The total number of the maxima is 16.
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A thin film with index of refraction is placed in one arm of a Michelson interferometer, perpendicular to the optical path. If this causes a shift of 7.0 bright fringes of the pattern produced by light of wavelength , what is the film thickness?
Transmission through thin layers. In Fig. 35-43, light is incident perpendicularly on a thin layer of material 2 that lies between (thicker) materials 1 and 3. (The rays are tilted only for clarity.) Part of the light ends up in material 3 as ray (the light does not reflect inside material 2) and (the light reflects twice inside material 2). The waves of andinterfere, and here we consider the type of interference to be either maximum (max) or minimum (min). For this situation, each problem in Table 35-3 refers to the indexes of refractionandthe type of interference, the thin-layer thicknessin nanometers, and the wavelengthin nanometers of the light as measured in air. Whereis missing, give the wavelength that is in the visible range. Whereis missing, give the second least thickness or the third least thickness as indicated.
Transmission through thin layers. In Fig. 35-43, light is incident perpendicularly on a thin layer of material 2 that lies between (thicker) materials 1 and 3. (The rays are tilted only for clarity.) Part of the light ends up in material 3 as ray (the light does not reflect inside material 2) and (the light reflects twice inside material 2). The waves of and interfere, and here we consider the type of interference to be either maximum (max) or minimum (min). For this situation, each problem in Table 35-3 refers to the indexes of refraction and , the type of interference, the thin-layer thickness in nanometers, and the wavelength in nanometers of the light as measured in air. Where is missing, give the wavelength that is in the visible range. Where is missing, give the second least thickness or the third least thickness as indicated.
Figure 35-24a gives intensity versus position on the viewing screen for the central portion of a two-slit interference pattern. The other parts of the figure give phasor diagrams for the electric field components of the waves arriving at the screen from the two slits (as in Fig. 35-13a).Which numbered points on the screen bestcorrespond to which phasor diagram?
(a) Figure 1
(b) Figure 2
(c) Figure 3
(d) Figure 4
How much faster, in meters per second, does light travel in sapphire than in diamond? See Table 33-1.
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