Thank you so much ! This has helped me so much with my Optics exam next week. I have a feeling I will be using your videos to recap on pretty much all my lectures! I don't think you understand how helpful your videos are , thanks again , keep it up.
Thank you! But I have one question. In the second example another formula I am familiar with to find refractive index is sin i/sin r = n . Isn't the angle of incidence 30° and the angle of refraction is 40°? Therefore the refractive index of the unknown medium = sin 30°/sin 40° = 0.78?
I paused the video at 2:01, got my TI-85 out and did the calculation. It was pretty funny (well, to me anyway) that the next step in the video was a TI-85 appearing on the screen working it out :)
Amazing. You should do some experiments. A visual experiment can be worth a 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 explanations.
lol super slow :)) 9:57
Nunchakus7 2 days ago
you saved my life dude , thanks !
JavierSkates2 1 month ago
excellent video
zain1612 1 month ago
I wish you were my teacher :( anyway tks!!
SuganTommy 2 months ago
You are god.
fortunesfool96 4 months ago
Thank you so much ! This has helped me so much with my Optics exam next week. I have a feeling I will be using your videos to recap on pretty much all my lectures! I don't think you understand how helpful your videos are , thanks again , keep it up.
shelly39 9 months ago
Thank you! But I have one question. In the second example another formula I am familiar with to find refractive index is sin i/sin r = n . Isn't the angle of incidence 30° and the angle of refraction is 40°? Therefore the refractive index of the unknown medium = sin 30°/sin 40° = 0.78?
MrChin000 11 months ago
Where'd you get that calculator? O_O
jonrty007 1 year ago 5
Where can I download that calculator? That is awesome!
ATMfromNJ 1 year ago
YOU ARE AMAZING
sball95 1 year ago
lovedddddddddd ur calculator..loll =P
thnk u so much Mr.Khan
Twinklerokz666 1 year ago
I paused the video at 2:01, got my TI-85 out and did the calculation. It was pretty funny (well, to me anyway) that the next step in the video was a TI-85 appearing on the screen working it out :)
LAnonHubbard 1 year ago 2
Where does this formula come from?
pysgodfach 1 year ago
@pysgodfach ..snell's law =]
Twinklerokz666 1 year ago
Comment removed
pysgodfach 1 year ago
Amazing. You should do some experiments. A visual experiment can be worth a 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 explanations.
webmastertool 1 year ago
Great as always!!!
thx alot
you are a good man
robertliu4499 1 year ago 9