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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