1213_Physics ProblemsTechnical Physics

1213_Physics ProblemsTechnical Physics - 554 *P43.18...

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554 Molecules and Solids *P43.18 We find an average spacing between peaks by counting 22 gaps between 796 10 13 . × Hz and 924 10 13 . × Hz : f h h I I h f = = F H G I K J == ×⋅ × 9 24 7 96 10 00582 10 1 4 4 663 10 4 5 82 10 29 10 13 13 2 2 2 34 21 1 47 .. . . . . af Hz 22 Hz Js s kg m 2 π ππ *P43.19 We carry extra digits through the solution because the given wavelengths are close together. (a) Evh f I JJ vJ =+ F H G I K J ++ 1 22 1 2 = a f = ∴− = +== × × Eh f f I f I EE h f I hc 00 11 2 02 2 11 00 2 34 8 6 1 2 3 2 1 2 3 6 626 075 10 2 997 925 10 22112 10 ,, . = λ ms m ej ∴+ = × hf I = 2 20 8983573 10 . J (1) EEh f I hc 11 02 2 34 8 6 2 6 626 075 10 2 997 925 10 24054 10 −= = = × × = . m = × hf I 2 8258284 10 2 20 = . J (2) Subtract (2) from (1): 3 7 252 89 10 2 21 = I . J ∴= × I 3 1 054 573 10 7 252 89 10 460 10
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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