HW 8 Solutions

# HW 8 Solutions - HW # 8 Solutions ...

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Unformatted text preview: HW # 8 Solutions  Conceptual Questions  1.  Δy ∝ λL d € (a) Decreases; (b) Decrease; (c) Increases  2. Nothing happens in the central band (m=0). Colors spread in  the remaining bands with red on the outside and blue and violet  on the inside. (see Fig. 22.8)  3. Two reasons. First the sources are not coherent since each  headlight generates its own random phase. (Reason for using  the same source and splitting it in two slit experiments. Second,  even if we had coherent sources since Δy=λL/d and λ/d is less  than 10‐7 the only way to see a pattern will be to go at least 105  meters away.  4. w∞1/D it decreases  5. Iw=const. , I∞D it decreases  6. No. For N slits the intensity is N2 that of a single slit. For two it  is four times larger. Coherent addition.  7.  8.1 Solution  8.2 Solution  8.3 Solution  8.4 Solution  ...
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## This note was uploaded on 12/28/2011 for the course PHYSICS 270 taught by Professor Drake during the Fall '08 term at Maryland.

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