Single slit width change, how would fringes differ?

[question dude]

just to be clear, this is single slit diffraction of light

if the slit width is made narrower, this would lead to more diffraction, so the fringe width would be wider, yeah?

but I'm a bit confused, because is this basically the same as saying the fringe separation would be wider?

 

[mfb]

if the slit width is made narrower, this would lead to more diffraction, so the fringe width would be wider, yeah?

Right

but I'm a bit confused, because is this basically the same as saying the fringe separation would be wider?

And that is right, too. Where is the problem?

 

[question dude]

Right
And that is right, too. Where is the problem?

slightly different from my original question, but what if I had a double slit

and I wanted to compared the difference between two wavelengths of light

would the longer wavelength of light produce wider maximas and have greater separations between them?

 

[mfb]

Sure.

 

[PJC01]

Yes, making the slit width narrower would result in a wider fringe separation or fringe width. This is because diffraction occurs when a wave passes through a narrow opening, causing the wave to spread out. The narrower the slit, the more diffraction occurs and the wider the fringes become. So, in essence, the fringe separation and fringe width are directly related and would both increase with a decrease in slit width. This can be seen in the equation for single slit diffraction, where the fringe width is inversely proportional to the slit width. Therefore, if the slit width changes, the fringes would also change accordingly.