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# Wavelength of light propogating through a slit watch

1. Hi, I'm trying to remember the exact details of what happens when light with a wavelength larger than the slit width tries to enter?

I thought that when lamda= width maximum diffraction will occur and at wavelengths greater than slit width no light would pass through it.

However some details on my uni course seem to suggest that light will continue to pass through it until width is equal to a half wavelength, which would make some sense.

Am I just remembering it wrong?
Thanks.
2. (Original post by impervious)
Hi, I'm trying to remember the exact details of what happens when light with a wavelength larger than the slit width tries to enter?

I thought that when lamda= width maximum diffraction will occur and at wavelengths greater than slit width no light would pass through it.

However some details on my uni course seem to suggest that light will continue to pass through it until width is equal to a half wavelength, which would make some sense.

Am I just remembering it wrong?
Thanks.
I also agree with you..consider the equation
when that is when is the greatest, however when
then there is no value of for which sin occurs

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