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Chapter 36: Q60P (page 1113)
The D line in the spectrum of sodium is a doublet with wavelengths . Calculate the minimum number of lines needed in a grating that will resolve this doublet in the second-order spectrum.
The minimum number of lines needed in the grating, to resolve the douplet, is 491.
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The radar system of a navy cruiser transmits at a wavelength of 1.6 cm, from a circular antenna with a diameter of 2.3 m. At a range of 6.2 km, what is the smallest distance that two speedboats can be from each other and still be resolved as two separate objects by the radar system?
Visible light is incident perpendicularly on a diffraction grating of 200 rulings/mm. What are the (a) longest, (b) second longest, and (c) third longest wavelengths that can be associated with an intensity maximum at 胃 = 30.0掳?
(a) Figure 36-34a shows the lines produced by diffraction gratingsA and B using light of the same wavelength; the lines are of the same order and appear at the same angles . Which grating has the greater number of rulings? (b) Figure 36-34b shows lines of two orders produced by a single diffraction grating using light of two wavelengths, both in the red region of the spectrum. Which lines, the left pair or right pair, are in order with greater m? Is the center of the diffraction pattern located to the left or to the right in(c) Fig. 36-34a andd) Fig. 36-34b?
Monochromatic light (wavelength) is incident perpendicularly on a single slit (width). A screen is placed parallel to the slit plane, and on it the distance between the two minima on either side of the central maximum is .
(a) What is the distance from the slit to the screen? (Hint:The angle to either minimum is small enough that.)
(b) What is the distance on the screen between the first minimum and the third minimum on the same side of the central maximum?
A beam of x rays with wavelengths ranging from to scatters from a family of reflecting planes in a crystal. The plane separation is. It is observed that scattered beams are produced forandlocalid="1664277381313" . What is the angle between the incident and scattered beams?
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