i heard my brain click. thank you, so glad to have found this gem.
@LokeshKumar-cf7pb3 жыл бұрын
Today is my Physics exam and this the best ever video I found for revision ❤️
@alaska_sugar3 жыл бұрын
an AWESOME video !!! I hoped this was on top when I searched for this. Very well explained, the theory with the experiment. Thanks a lot !!!!!!!!!!!!!!!!!
@louishollick89044 жыл бұрын
Thanks for this, you explained it very well!
@andygray98194 жыл бұрын
So do I after 50 years of wondering exactly why
@tcy1014 жыл бұрын
4:22 shouldn't the new wavefront be slightly curved, not curved all the way back to the obstacle?
@tcy1014 жыл бұрын
@@AndyMasley Oh! that is because the obstacle is in the way. Thanks!
@naheedisrarnice8972 ай бұрын
Dear sir .When u drew the new plane wavefronts ,u did not draw the ends curve but while passing through a slit ,u drew the ends curved . Why is it so ?I dont understand this point only .😢
@meh30804 жыл бұрын
Hi. Can this explain why when slit length>wavelength, the diffraction is much smaller (,slit length, the diffraction is much more significant?
@sno3b4ll Жыл бұрын
Thanks from Germany!
@strugsi2 жыл бұрын
Thx man. You helped me a lot!
@ankitaaarya3 жыл бұрын
You're awesome 👌 👏 , awesome teacher.
@williamlee46263 ай бұрын
Great Video!
@Flowint3 жыл бұрын
Thank you so much! I understand it now.
@Mozzie79203 жыл бұрын
Why doesn’t the wavefront at 4:29 carry on around the waves at the top?
@AndyMasley3 жыл бұрын
I imagined there may be more wavefront above it that I didn't include that would cause it to continue in a straight line, but if that's not there it would carry on around the waves. It wasn't the main point of the demo so I ignored it.
@MrJking19623 жыл бұрын
You went from a spherical wave to a semi-spherical wave without explanation...
@MrJking19623 жыл бұрын
@@AndyMasley 1:03
@MrJking19623 жыл бұрын
“In all directions” includes the whole circle. A semi center of disturbance. Radiates in all directions except backwards.
@MrJking19623 жыл бұрын
@@AndyMasley wouldn’t that mean that light travels backwards?
@MrJking19623 жыл бұрын
@@AndyMasley This is actually a flaw in Huygen's Principle. It ignores, just as you did that if every point is a light source in all directions then it must also go backwards. Nature tells us it doesn't. In 1991 David Miller at Stanford mathematically showed that if every point was a "dipole" rather than a monopole light source then there will be no backward light. This is sort of like Plank solving the Ultraviolet Catastrophe with discrete mathematics but not knowing the why of the discrete nature of Quantum Mechanics. I don't know if his solution stands up in the Physics world that is that photons are dipole. ee.stanford.edu/~dabm/146.html You will probably never draw that semicircle again without considering this. The dipole explanation is a bit daunting but any observant student is bound to say "hey you just drew a circle and said 'every direction'. Does that mean light goes backwards?"
@fierybl4de400 Жыл бұрын
@@MrJking1962 damn bro you cooked
@terryfu62194 жыл бұрын
If each point on a wavefront can create another circular wave would we see a single disturbance create multiple waves?
@terryfu62194 жыл бұрын
@@AndyMasley usually though a single disturbance only creates one wave so I’m confused on how a wave can create another wave?
@jannatulferdows56974 жыл бұрын
i finally get it now !
@kellyjin24692 жыл бұрын
4:32 why did you connect the curve with the straight line where they overlap?
@miles87383 жыл бұрын
Awesome explanation my man
@rakibrafi3491 Жыл бұрын
thank you so much !!!!
@theimmux30343 жыл бұрын
Click on this video if your textbook isn't enough.