A diffraction grating is illuminated by monochromatic light of a wavelength 660 nm. What is the number of lines per cm on the grating so that only two maxima are produced? O 7500 15000 5000 3000

You measure three segments of the distance between a diffraction slit an the screen on which the pattern forms: x1 = (15.8 ± 0.2) cm, x2 = (6.7 ± 0.1) cm, and x3 = (11.3 ± 0.1). What is the uncertainty of the total distance x1 + x2 + x3? Group of answer choices 0.4 cm 0.5 cm 0.2 cm 0.3 cm 0.1 cm

33. You have a laser (a monochromatic light source) and want to estimate the wavelength. You decide to use a reflective diffraction grating to do this. The light is incident on the grating at 20 degrees with respect to normal. Using a grating with a groove distance of 5 um, the first-order diffraction, is found at an angle of -12.5 degrees. Determine the wavelength of the source. a) 500 nm b) 628 nm c) 808 nm d) 946 nm e) None of the above 34. In Raman spectrometry, Stokes lines have a) lower energy than that of anti-Stokes scattering. b) equal energy to that of anti-Stokes scattering. ) higher energy than that of anti-Stokes scattering d) none of the above 35. Upon ionization of phenol in aqueous solution, maximal UV absorbance changes to longer wavelength. a) True b) False 36. It takes longer time to observe fluorescence than phosphorescence. a) True b) False 37. The vibrational motion of C-H stretching in ethylene as in the figure can be detected by a) IR. b) Raman. c) IR and Raman.…

A double slit is illuminated with monochromatic light of wavelength 6.00 × 102 nm. The m = 0 and m = 1 bright fringes are separated by 3.0 cm on a screen which is located 4.0 m from the slits. What is the separation between the slits?   Question 24 options:    4.0 × 10−5 m     1.2 × 10−4 m    2.4 × 10−4 m    8.0 × 10−5 m    1.6 × 10−4 m

Light from an argon laser strikes a diffraction grating that has 4,300 grooves per centimeter. The central and first-order principal maxima are separated by 0.444 m on a wall 1.67 m from the grating. Determine the wavelength of the laser light. 597.5 nm 510.7 nm 440.3 nm 363.9 nm

A thin film of glycerin (n = 1.473) of thickness 536 nm with air on both sides is illuminated with white light at near normal incidence. What wavelengths will be strongly reflected in the range 300 nm to 700 nm? nm (smallest value) nm nm (largest value) Need Help? Read It

A diffraction grating with unknown number of lines per mm is illuminated by light at a wavelength = 633 nm and the first order diffraction pattern is seen at an angle B = 50.0°. Light of a second wavelength is shone onto the grating, whose second order diffraction pattern is seen at y = 60.0°. What is the wavelength of this second beam? 358 nm 392 nm 716 nm 548 nm 272 nm

A thin film of glycerin (n = 1.473) of thickness 475 nm with air on both sides is illuminated with white light at near normal incidence. What wavelengths will be strongly reflected in the range 300 nm to 700 nm? nm (smallest value) nm nm (largest value) Need Help? Read It