−< <+λλλamda. Rewriting this as −<<+da m da//we arrive at the result mdammax/<≤+1. Due to the symmetry of the pattern, the multiplicity of the mvalues is 2mmax+ 1 = 17 so that mmax= 8, and the result becomes 89<≤dawhere these numbers are as accurate as the experiment allows (that is, “9” means “9.000” if our measurements are that good). 80. The central diffraction envelope spans the range −<<+θ11where 11sin ( / ).
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.