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Unformatted text preview: Physics 246, Spring 2007 Midterm Exam Wednesday, March 28, 2007 Answer all questions, using the paper provided. Begin each problem on a sepa- rate sheet. The pages will be separated for grading, so clearly label the problem number and put your name on EACH PAGE. One 8.5 by 11 inch cheat sheet (front and back) allowed. No other books, calculators or notes allowed. SHOW ALL WORK. Potentially useful information: Z n (sin 2 ) d = Z n (cos 2 ) d = n 2 Z + - e ix ( k- k ) dx = 2 ( k- k ) a 2 y 2 + by = ( ay + b 2 a ) 2- b 2 4 a 2 Z + - e- y 2 dy = a | n > = n + 1 | n + 1 > a | n > = n | n- 1 > 1 1. Short answer (10 points total). You do not need to explain your answers in this problem unless explicitly asked to do so. (a) (3 points) What are the units of h ? What physical quantity has the same units? (b) (3 points) True or false (no explanation necessary): i. A free particle wave function with the minimum uncertainty product...
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