Timeline for Why does wavelength affect diffraction?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Jul 10, 2014 at 15:04 | comment | added | Tom-Tom | Fraunhofer diffraction is based on Huygens's principle. The OP's question is more about why we can apply Huygens's principle here : why does the hole act as a source ? | |
| Jul 10, 2014 at 14:30 | comment | added | docPhil | The formula with $\phi$ converts the distance light travels to phase. Blue light does not bend less than red, but the resulting inference pattern changes. Think of it in terms of interfering wavelets. Draw two points on paper representing the edges of a slit, and then draw concentric circles with a fixed spacing around both points. When the circles overlap you have constructive interference. Do the same again but with a different spacing (ie wavelength) of the circles and you will see the overlap positions change. | |
| Jul 10, 2014 at 11:38 | comment | added | rahulgarg12342 | Sorry but I have no idea where did the math you used come from and what formulas you have used. I just need a simple explanation for why would a blue ray bend less around the edges than a red ray? | |
| Jul 10, 2014 at 11:06 | history | answered | docPhil | CC BY-SA 3.0 |