For light of wavelength 589 nm, calculate the critical angles for the following substances when surrounded by air. water ? ethyl alcohol ? carbon disulfide?
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For light of wavelength 589 nm, calculate the critical angles for the following substances when surrounded by air.
water ?
ethyl alcohol ?
carbon disulfide?
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- A parallel X-ray beam is diffracted by sodium chloride. Strong first-order is obtained when the Bragg angle (the angle between the crystal planes and the emerging beam) is 6º 50’. The distance between the planes that are in the reflection position in the crystal is 2,8 Å. 1 angstron = 1 Å = 0,1 nm. a) What is the wavelength of X-rays?For light of wavelength 589 nm, calculate the critical anglesfor the following substances when surrounded by a substance with an index of refraction of 1.341 sodium chloride. 74.53° 60.29° 1.23° 1.4° noneOn a certain crystal, a first-order X-ray diffraction maximum is observed at an angle of 33.30 relative to its surface, using an x-ray source of unknown wavelength. Additionally, when illuminated with a different x-ray, this time of known.wavelength 0.205 nm, a second-order maximum is detected at 22.20. Determine the spacing between the reflecting planes.. Select one: O a. 0.19nm O b. 1.84nm O c. 0.27nm O d. 0.54nm
- For light of wavelength 589 nm, calculate the critical angles for the following substances when surrounded by a substrance with an index of refraction of 1.435: (a) fused quartz 79.81º 1.53º 83.76º 1.39º (b) polystyrene 1.39º 74.38º 79.54º 1.39º (c) sodium chloride 68.34º 62.67º 1.39º 1.32ºress SA A thin film of magnesium fluoride (n = 1.38) is applied to glass (n = 1.50) with a thickness of 100 nm. For what visible wavelength of light will this coating act as nonreflecting? Assume normal incidence. O 491 nm O 600 nm O 504 nm 552 pm Q Search 15 40 %5 6 Il app.honorlock.com is sharing your screen. Stop, sharing Hide 99+ 3+ hp 103 a malip 8Different isotopes of the same element emit light at slightly different wavelengths. A wavelength in the emission spectrum of a hydrogen atom is 656.45 nm; for deuterium, the corresponding wavelength is 656.27 nm. (a) What minimum number of slits is required to resolve these two wavelengths in second order? (b) If the grating has 500.00 slits/mm, find the angles and angular separation of these two wavelengths in the second order
- An X-ray beam of a wavelength 0.15 nm is incident on an NaCl crystal, at 25° to reflecting planes of the crystal. If the first order reflections occurred in the spectrum, find the spacing of the reflecting planes of the crystal. (а) 0.18 pm (b) 0.35 nm (c) 0.18 nm (d) 0.35 pmAn electric current through hydrogen gas produces several distinct wavelengths of visible light. What are the wavelengths of the hydrogen spectrum, if they form first-order maxima at angles of 24.2o,25.7o,29.1o,and 41.0o when projected on a diffraction grating having 10,000 lines per centimeter?On a certain crystal, a first-order X-ray diffraction maximum is observed at an angle of 27.1° relative to its surface, using an X-ray source of unknown wavelength. Additionally, when illuminated with a different known wavelength of 0.137 nm, a second-order maximum is detected at 37.3°. Determine a. the spacing between the reflecting planes. b. the unknown wavelength.
- For light of wavelength 589 nm, calculate the critical anglesfor the following substances when the quartz, polystyrene,and sodium chloride are surrounded by water.For a light of wavelength 589 nm, calculate the critical angles for the following substances when surrounded by water? glycerine= fluorite= sodium chloride=For light of wavelength 589 nm, calculate the critical anglesfor the following substances when surrounded by air: (a)fused quartz, (b) polystyrene, and (c) sodium chloride.