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Monday, February 9, 2009

Diffraction Phenomena

The next phenomena I’m gonna discuss here is DIFFRACTION.

So what is diffraction??

Diffraction is the spreading of a wave when it travels through a gap or an obstacle.

Water Wave Diffraction:

Now lets visualize this, what will happen when water waves are passing through a gap…Watch this!

The effect of diffraction depends on the size of gap, obstacle & the wavelength.

The smaller the gap, the bigger the diffraction . Now try to watch this one pulak..

Meanwhile..The bigger the wavelength, the bigger the diffraction effect can be seen.

U should try this out..click here now!

Diffraction also occurs when wave passed through a barrier/ obstacles.


This is IMPORTANT! Please remember this!.. the effect of diffraction is bigger when:

  • barrier/obstacle is bigger
  • wavelength is bigger
  • frequency is lower
  • slit/gap is smaller



1 comment:

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