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Three discrete spectral lines occur at angles of 10.8°, 14.5°, and 15.1° in the first-order spectrum of a grating spectromete
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21 = 3610 /cm = 36100 00o/m d Sm 0 =na 2 = d smo Smo - п n (10) (a) n=1 (i) 0,- 10.8° 2,= Sm 10.8 } - (1(361000) 1,= 5.1906x11) Sam B. = 2(5-1906x10?)(361000) Sino, = 0. 374 76132 0, : 22.019 ii) sine, 216.9357X102) (361000) Sino, 30.50075754 62 Ci S

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