1) what does diffraction mean? 2) when does diffraction occur ? 3) when looking

Question

1) what does diffraction mean?
2) when does diffraction occur ?
3) when looking at an interference or diffraction pattern, what does an anti-node look like?
4) when looking at an interference or diffraction pattern, what does a node look like?

1) what does diffraction mean?
2) when does diffraction occur ?
3) when looking at an interference or diffraction pattern, what does an anti-node look like?
4) when looking at an interference or diffraction pattern, what does a node look like?


2) when does diffraction occur ?
3) when looking at an interference or diffraction pattern, what does an anti-node look like?
4) when looking at an interference or diffraction pattern, what does a node look like?

Explanation / Answer

1) Diffraction is the bending of light around the edges of an obstacle in their paths and light enters in the geometric shadow.The amount of bending depends relative size of wavelength of light to the size of obstacle.

2) The wavelength of light is equal to gap size of an obstacle, is the condition for maximum diffraction.

3) Antinode is the maximum displacement of the vibrating particle. This is happens by constructive interference means crest of one wave falls on crest of another wave.

4)

Node is the minimum or zero displacement of the vibrating particle. This is happens by destructive interference means crest of one wave falls on trough of another wave.

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