Calculate the angle of the second-order maximum for monochromatic light of wavelength 550nm if it illuminates

a)a double slit with a slit seperation of 2.0x10^-6m

b)a diffraction grating with 10 500 slits in 1.0m

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- Apr 12th 2008, 10:55 AMjohettyoung's double slit equation....
Calculate the angle of the second-order maximum for monochromatic light of wavelength 550nm if it illuminates

a)a double slit with a slit seperation of 2.0x10^-6m

b)a diffraction grating with 10 500 slits in 1.0m - Apr 12th 2008, 11:23 AMo_O
2nd fringe occurs when m = 2:

Solve for .

For multiple-slit interference with diffraction gratings, we have the same equation as above also with m = 2:

To find d, note that each slit are presumed to be equally spaced from one another. So, the distance between two slits is: