Number of lines of IR grating is 90 lines per millimeter and the illumination of this grating occurs at 15.0 mm. First order resolution of this IR grating needs to be calculated and the distance between the two resolved lines is to be determined when they are centered at 1200 cm-1.
Formula for the resolving power of grating is as follows:
Calculation of distance between two resolved lines can be done using the following formula:
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