Question 9 Three discrete spectral lines occur at angles of 10.2°, 14.2°, and 14.3° in the first-order spectrum of a grating spectrometer. (Assume that the light is incident normally on the gratings.) (a) If the grating has 3 690 slits/cm, what are the wavelengths of the light, in nanometer (nm)? (give your answers from smallest to largest wavelength.) At what angles, in degrees, are these lines found in the second-order spectrum? Give your answers from smallest to largest angle.) (b)

Question 9 Three discrete spectral lines occur at angles of 10.2°, 14.2°, and 14.3° in the first-order spectrum of a grating spectrometer. (Assume that the light is incident normally on the gratings.) (a) If the grating has 3 690 slits/cm, what are the wavelengths of the light, in nanometer (nm)? (give your answers from smallest to largest wavelength.) At what angles, in degrees, are these lines found in the second-order spectrum? Give your answers from smallest to largest angle.) (b)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

T1
The fringe of order 1 is observed at an angle of 1.1° when light of wavelength 440 nm falls on two narrow slits. How far apart are the slits in micrometres? Give your answer to 3 decimals. Your Answer: Answer
Q2. Compute the smallest radius of a circular antenna (with constant excitation current) in terms of λ where the Far- Field Zone radiation pattern is minimum at the angle of 45° aside from the plane of the loop antenna at 0 = 0°. (Explain each step!)
1
Figure nmPart D Suppose the wavelength of the light is 530nm. How much farther is it from the dot on the screen in the center of fringe E to the left slit than it is from the dot to the right slit? Express your answer with the appropriate units. Ar Incorrect; Try Again; 2 attempts remaining|IIIII A_B_C_DE
Item 7 The photoreceptors in the human eye, called rods and cones, have different sensitivities to different wavelengths of electromagnetic waves. (Figure 1) (Notice that the y axis in the figure is a logarithmic scale.) The rods, which number over 100 million, can only be activated by a certain range of wavelengths, but they do not pass any color information to the brain. In other words, they note differences in shades of grey (from black to white) and are responsible for a person's ability to see in dim light. Cones, which number around 6 million, give us color vision. Cones come in three different kinds: 64% of cones are sensitive to long wavelengths of visible light (toward the red end of the spectrum), 32% are sensitive to medium wavelengths, and the remaining 2% are sensitive to short wavelengths (toward the blue end of the spectrum). Colors are differentiated on the basis of the extent to which visible light stimulates each kind of cone. Figure Log relative sensitivity 0 350 400…
An aperture with a diameter of 0.1 mm radiates light at 650 nm. How far from this source must we place a screen in order to have a coherence area of 0.1 m² ? Please enter your answer in meters in the space provided, keeping one place to the right of the decimal.
1) light distribution curve since the given lamp has 23.4 W power and 104 lm/w efficiency factor, answer the following questions.a) how many lumens is the luminous flux of the lamp?b) if the lamp was a smooth sphere, that is, if the light intensity was constant in all directions, would it be a cd? c) if the lamp was a smooth sphere, how many lx would it create from a height of 2 meters directly below it? d) if the lamp was a semi-sphere, how many lx would it create from a height of 2 meters directly below it? (r = 10 cm) e) note that the values in the light distribution curve of the lamp seen in the figure are given as cd/klm (cd / 1000 lm). According to this, how many lx levels will it create from a height of 2 meters directly below the lamp? f) how many LX is the light level that the lamp will create in a plane illuminated at a 30° angle from the same height?
Below, the most intense peaks of x-ray diffraction patterns obtained from two samples the same material. What could have caused the differences in the XRD peaks give below? Explain? A В 20 (Degrees) Intensity (arbitrary units)
Solve the following, if the radio wave transmitted at an angle of incidence 68 degrees, with a wavelength of 6mm.I. Find the critical density II. Find Maximum usable frequency if Nmax = 2xN Critical
Physics What is important when adjusting the entrance slit of the spectograph (in terms of sharpness and brightness)?
2 Problem 2 Assume two adjacent interstellar gas clouds with known thickness dị and d2 found in front of an astronomical light source. Suppose that this source emits a beam of radiation with known specific intensity 1, as it enters the first cloud of interstellar gas. Calculate the specific intensity I, immediately after this beam has traversed the two clouds of gas. Assume that the densities (p1 and p2) and the opacities (k,1 and ky,2) are constant within the clouds and are known quantities and that these clouds possess no emissivity. (Note the relationship between the opacity and absorption coefficient a, = pk,. See Rybicki and Lightman eq. 1.22.) %3D