Light of wavelength 620 nm passes through a double slit, yielding a diffraction pattern whose graph of intensity l versus angular position theta is shown in Figure. Calculate (a) the slit width and (b) the slit separation. (c) Verify the displayed intensities of thc m = 1 and m = 2 interference fringes.

Light of wavelength 620 nm passes through a double slit, yielding a

1.	Light of wavelength 620 nm passes through a double slit, yielding a diffraction pattern whose graph of intensity l versus angular position theta is shown in Figure. Calculate (a) the slit width and (b) the slit separation. (c) Verify the displayed intensities of thc m = 1 and m = 2 interference fringes.
Answer» Solution :(a) 7.1 `MU m`, (B) 28 `mu m`, (c) for m=1, `I= 5.7 mW // CM^(2)`, for m = 2, `I = 2.9 mW // cm^(2)`

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