Surface chem, Tyndall effect
What does it mean for colloids to scatter light? How do they scatter light, is it like diffraction? Why can I see the path of the light through a colloid?
20 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.You can think of it as diffraction yes.
For context, a colloid particle's size is comparable to the wavelength of the light and that's apparently why the effect happens
oh?
So, you ever heard of the Poisson spot?
no
why is there so much poisson
Go read
alr alr
Famous guy. But this name is actually an insult to him.
💀
but like
why can you see the path of light
does the poisson spot explain that
Mhm
Constructive interference is possible even behind solid objects.
That's the main point
lets take the example of sun through trees
why can you see rays in specific spots
if the entirety of the air is a colloid
shouldn't it just be a giant mess
? I'm pretty sure that's just gaps between the leaves
oh right sorry
im tripping
thats just the gaps
Not a wavelength-scale phenomenon
alr ill read about it
Dust
Rays
ahh yep got this
+solved Opt iTeachChem
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