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diffraction grating
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1. For diffraction grating, dsin@ = n入 For first order maximum, n = 1 So, dsin20.5* = 632.8 X 10^-9 Grating separation, d = 1.81 X 10^-6 m 2. By E = hc/入 Energy = (6.63 X 10^-34)(3.0 x 10^8)/(410 X 10^-9) = 4.85 X 10^-19 J = 3.03 eV
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diffraction grating
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http://i409.photobucket.com/albums/pp172/momoko_deedee/prac_5.jpg plz show steps...xDD thx alot*最佳解答:
1. For diffraction grating, dsin@ = n入 For first order maximum, n = 1 So, dsin20.5* = 632.8 X 10^-9 Grating separation, d = 1.81 X 10^-6 m 2. By E = hc/入 Energy = (6.63 X 10^-34)(3.0 x 10^8)/(410 X 10^-9) = 4.85 X 10^-19 J = 3.03 eV
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