This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Physics 1112 Spring 2010 University of Georgia Instructor: HBSch¨uttler Formula Sheet for Exam #2 Reading and thoroughly familiarizing yourself with this formula sheet is an important part of, but it is not a substitute for, proper exam preparation. The latter requires, among other things, that you have reworked all assigned homework problem sets (PS) and the inclass quizzes, studied the posted PS solutions, and worked and studied the assigned conceptual practice (CP) problems, as well as (optionally) some practice test (PT) problems, as posted on the LONCAPA homework and on the PHYS1112 examples and homework web pages. You should consult the syllabus, and in particular review the Class Schedule on the last syllabus page (posted on the PYS1112 course web site), to find out which topics you should cover in preparing for this exam. Wave Optics, Interference, Diffraction (1) Periodic Wave Condition: v = λf = λ τ (2) Index of Refraction for electromagnetic waves, definition: n = c v = λ vacuum λ with λ vacuum ≡ c/f = cτ . (3) Definition of Path Length Difference for twosource, doubleslit or adjacent slits in multislit/diffraction grating: Δ ` ≡ ` 2 ` 1 (4) Path Length Difference vs. Angle: Δ ` is given approximately in terms of observation angle θ measured from central axis: Δ ` ∼ = d sin θ if d L where L =distance from slits or sources to observation screen, d =spacing of adjacent sources, slits or lines in doubleslit, multislit or diffraction grating. (5) Constructive Interference Condition ( ≡ intensity maxima, principal maxima, bright fringes) for twosource, doubleslit, multislit or diffraction grating: Δ ` = mλ or d sin θ = mλ (if d L ); with m = 0 , ± 1 , ± 2 ,... where m is the ”order” of the (principal) maximum. (6) Destructive Interference Condition 1 ( ≡ intensity minima, dark fringes) for two source or doubleslit experiment: Δ ` = m + 1 2 λ or d sin θ = m + 1 2 λ (if d L ); with m + 1 2 = ± 1 2 , ± 3 2 ,......
View
Full
Document
This note was uploaded on 09/01/2010 for the course PHYS 1112 taught by Professor Seaton during the Spring '08 term at University of Georgia Athens.
 Spring '08
 SEATON
 Physics

Click to edit the document details