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7. A sodium doublet consists of two wavelengths, 2, = 5.890 x 10-7 m and åz = 5.896 x 10-7 m. Show that the minimum number of lines a grating must have to resolve this doublet in the third spectral order is = 328. 8. A red spectral line of wavelength 2 = 6.5 x 10-7 m is observed to be a close doublet. If the two lines are just resolved in the third spectral order by a grating 9 x 10* lines, show that the doublet separation is 2.4 × 10-12 m.

7. A sodium doublet consists of two wavelengths, 2, = 5.890 x 10-7 m and åz = 5.896 x 10-7 m. Show that the minimum number of lines a grating must have to resolve this doublet in the third spectral order is = 328. 8. A red spectral line of wavelength 2 = 6.5 x 10-7 m is observed to be a close doublet. If the two lines are just resolved in the third spectral order by a grating 9 x 10* lines, show that the doublet separation is 2.4 × 10-12 m.

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Please answer both 7 and 8

Document1 - Microsoft Word (Product Activation Failed) File Home Insert Page Layout References Mailings Review View a ? W A A Find - % Cut - =。三,年 外T Calibri (Body) - 11 A A Aa Aal AaBbCcDc AaBbCcDc AaBbC AaBbCc AaB AaBbCcL E Copy Сopy a Replace Paste B I U - abe x, x ab A I Normal I No Spaci. Heading 1 Heading 2 Change Title Subtitle Format Painter Styles - Select - Clipboard Font Paragraph Styles Editing L • 2:1: 1: | 3:1' 4: ·5.1 6.1:7 l:8: 1'9 ' 10: 1 '11: 1'12 :L·13:1' 14:' 15. LA:L 17:L · 18. 7. A sodium doublet consists of two wavelengths, A, = 5.890 x 10-7 m and A2 = 5.896 x 10-7 m. Show that the minimum number of lines a grating must have to resolve this doublet in the third spectral order is 328. 8. A red spectral line of wavelength A = 6.5 x 10-7 m is observed to be a close doublet. If the two lines are just resolved in the third spectral order by a grating 9 × 10* lines, show that the doublet separation is 2.4 x 10-12 m. ull 10:27 AM 2021-09-21 Page: 1 of 1 B I E E E 90% e Words: 0 + 14: I ·13• I • 12• I •11" | ·10:| ·9·|"88' |:7·|'6'|·5 · | :4•1•3•l•2·L·1•1•| •|•1•1:2 ]|
Transcribed Image Text:Document1 - Microsoft Word (Product Activation Failed) File Home Insert Page Layout References Mailings Review View a ? W A A Find - % Cut - =。三,年 外T Calibri (Body) - 11 A A Aa Aal AaBbCcDc AaBbCcDc AaBbC AaBbCc AaB AaBbCcL E Copy Сopy a Replace Paste B I U - abe x, x ab A I Normal I No Spaci. Heading 1 Heading 2 Change Title Subtitle Format Painter Styles - Select - Clipboard Font Paragraph Styles Editing L • 2:1: 1: | 3:1' 4: ·5.1 6.1:7 l:8: 1'9 ' 10: 1 '11: 1'12 :L·13:1' 14:' 15. LA:L 17:L · 18. 7. A sodium doublet consists of two wavelengths, A, = 5.890 x 10-7 m and A2 = 5.896 x 10-7 m. Show that the minimum number of lines a grating must have to resolve this doublet in the third spectral order is 328. 8. A red spectral line of wavelength A = 6.5 x 10-7 m is observed to be a close doublet. If the two lines are just resolved in the third spectral order by a grating 9 × 10* lines, show that the doublet separation is 2.4 x 10-12 m. ull 10:27 AM 2021-09-21 Page: 1 of 1 B I E E E 90% e Words: 0 + 14: I ·13• I • 12• I •11" | ·10:| ·9·|"88' |:7·|'6'|·5 · | :4•1•3•l•2·L·1•1•| •|•1•1:2 ]|
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