Physics 1 Problem Solutions 268

Physics 1 Problem Solutions 268 - a) λ/D << 1 where...

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Chapt. 35 Geometrical Optics Multiple-Choice Problems 035 qmult 00100 1 4 1 easy deducto-memory: geometrical optics defnition Extra keywords: mathematical physics 1. “Let’s play Jeopardy ! For $100, the answer is: It is an approximate optical theory that treats light as traveling in straight line rays in homogeneous media and has special rules ±or dealing with re²ection and re±raction. The propagation o± light is tracked by ray tracing. The theory usually applies whenever the wavelength o± light is much smaller than the size scales o± the objects light interacts with.” What is , Alex? a) geometrical optics b) optometry c) Opticks d) Maxwell’s electromagnetism e) quantum electrodynamics 035 qmult 00110 1 1 4 easy memory: geometrical optics, classical particles 2. Geometrical optics treats light in many respects as i± light consisted o±: a) vector felds. b) scalar felds. c) clumps o± electric charge. d) classical particles. e) reindeer. 035 qmult 00120 1 1 5 easy memory: validity o± geometrical optics 3. Geometrical optics applies when:
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Unformatted text preview: a) λ/D << 1 where D is an irrelevant size scale. b) λ/D >> 1 where D is an irrelevant size scale. c) λ/D >> 1 where D is a size scale characteristic o± the objects or apertures a light beam encounters. d) λ/D = 1 where D is an irrelevant size scale. e) λ/D << 1 where D is a size scale characteristic o± the objects or apertures a light beam encounters. 035 qmult 00130 1 4 3 easy deducto-memory: rays 4. In geometrical optics light propagation is treated using which are idealized infnitely narrow beams o± light that propagate in straight lines. Laser beams are actually quite a use±ul approximation to . a) sams b) re±ractions c) rays d) waves e) re²ections 035 qmult 00200 1 1 2 easy memory: law o± re²ection 5. The law o± re²ection is: a) n 1 sin θ 1 = n 2 sin θ 2 . b) θ incident = θ refected . c) 1 f = 1 d o + 1 d i . d) m = h i h o = − d i d o e) θ refected = sin θ incident . 035 qmult 00210 1 1 4 easy memory: specular re²ection...
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This note was uploaded on 11/16/2011 for the course PHY 2053 taught by Professor Buchler during the Fall '06 term at University of Florida.

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