Light of wavelength 589 nm passes through a double slit, yielding a diffraction pattern whose graph of intensity versus angular position θ is shown in the figure. Calculate the slit width b and the slit separation d (in degrees).
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Light of wavelength $440 \mathrm{~nm}$ passes through a double slit, yielding a diffraction pattern whose graph of intensity $I$ versus angular position $\theta$ is shown in Fig. $36-44$. Calculate (a) the slit width and (b) the slit separation. (c) Verify the displayed intensities of the $m=1$ and $m=2$ interference fringes.
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