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L19C_prelab - Answer the following Identify the slits by...

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a. Write the condition--in equation form--for constructive or destructive interference for double, multiple, and single slits. Look these up in the text if you need to. The formulas must be in terms of wavelength, λ , slit separation d (or slit width W in the case of N = 1), angle θ (as defined in the text), and order (m). In addition to writing the equation, indicate the values of m (integer, odd half-integer) for which the formula applies and indicate whether the condition is for constructive or destructive interference. ID (number on slide) N Separation or width (mm) Equation Values of m Constructive or Destructive? 1 2 0.127 d*sin(θ)=m*λ integer constructive 2 0.169 3 multiple 0.0847 d*sin(θ)=m*λ integer constructive 4 0.127 5 1 0.212 W*sin*(θ)=m*λ integer destructive 6 0.127
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Unformatted text preview: Answer the following. Identify the slits by the ID given in the table. For N > 2 (multiple), assume that the slits have the same width. You needn't give explanations at this point. b. For N > 1, which slits do you expect to produce the same fringe spacing? ____1 and 4_____ c. For N > 1, which slits do you expect to produce the greatest fringe spacing? ____3______ d. Which slits do you expect to produce the sharpest fringes? ___5 and 6______ e. For N = 1, which slit do you expect to have the broader central intensity peak? ____6______ f. For N = 1, how do you expect the width of the central peak to compare to the widths of the other peaks in the intensity curve? Central peak is wider than the other peaks in the intensity curve....
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