Physics Problems 283

Physics Problems 283 - Chapt 37 Diffraction 279 b c d e a...

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Unformatted text preview: Chapt. 37 Diffraction 279 b) c) d) e) a = d. a >> d. a = 2d. a = 3d. 037 qmult 00600 1 4 4 easy deducto-memory: diffraction grating 6. “Let’s play Jeopardy! For $100, the answer is: An optical device consisting of many narrow slits (called rulings) or reflective grooves (also called rulings).” a) b) c) d) e) What What What What What is is is is is a a a a a Michelson interferometer, Alex? converging lens, Alex? compact disk, Alex? diffraction grating, Alex? laser, Alex? 037 qmult 00700 1 1 5 easy memory: Rittenhouse 7. The diffraction grating was apparently invented (not that anyone noticed much) in 1785 by: a) b) c) d) e) Ben Franklin. Benjamin Thompson (ennobled as Graf Rumford). Thomas Jefferson. Sam Adams. David Rittenhouse. 037 qmult 00800 1 1 5 easy memory: use of diffraction grating 8. The diffraction grating is an important device in: a) b) c) d) e) microscopy. sewer systems. cameras. compact disks. spectroscopy. 037 qmult 00900 1 1 1 easy memory: diffraction grating resolution 9. The bright fringes of a diffraction grating diffraction pattern are: a) b) c) d) e) very high and narrow and this allows high wavelength resolution. very low and broad and this allows low wavelength resolution. are exactly like two-slit bright fringes. are more or less like two-slit bright fringes. very high and narrow and this allows low wavelength resolution. Full-Answer Problems 037 qfull 00010 1 3 0 easy math: 1. Wavelength 0.633 µm light is incident on a single slit. a) Qualitatively sketch the diffraction pattern intensity as a function of θ. b) What is the analytic expression for the angular difference between the nth order minima on the opposite sides of the central maximum? c) The two first order minima are separated by 3.0◦ . What is the slit width a? ...
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This note was uploaded on 12/14/2011 for the course PHY 2055 taught by Professor Dr.acost during the Fall '11 term at University of Florida.

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