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Fringes - Physics

Lets say I have a double slit experiment set up and monochromatic light passing through the slits.

Lets imagine I increase the WIDTH of each slit but maintain the SAME slit separation.

It is said that there would be fewer fringes observed in such a scenario.

Why ?
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Pangol
15
What happens to water waves if you diffract them through a gap much larger than their wavelength?
Original post by Pangol
What happens to water waves if you diffract them through a gap much larger than their wavelength?


The diffraction effect is much less pronounced.

So are you implying the incident light at the slit doesnt diffract as much and only a smaller area of the screen has any noticeable fringes on it ?
Reply 4
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Pangol
15
That's effectively it, yes.

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