Physics 11.2.3c - Snell's Law, Another Example

[chanman]

I GET IT MY GOSH MY TEACHER SPEND 3 lessons trying to teach a bunch of hi skool students and failed. And u taught me in just under 10 mins!!! step by step!!!!

UR THE BEST!!!

[pretendjb]

aloha, i'm a new physics teacher and i really need visual aids such this to make my lectures clearer, your videos i'm sure will help.thanks

[derekowens]

@CR125iswhatidrive Correct. When we're refracting from air into glass or some other material, we typically round that to 1.000. When we're refracting between air and space, that .0003 matters.

[Billabong]

your videos are amazing. Simple and to the point

[cowboyg]

thank this helps so much and I won't be screwed for my physics test tomorrow!!!

[derekowens]

@Opapaappa If the light is refracting from air into some other substance, such as water or glass, then the .0003 is not significant. If it is refracting from air into space (or space into air), then it would matter.

[nakeebi]

Thank u sooo much. I cannot believe how comfortable I am with difficult concepts like Snell's law!! U r truly fantastic. :D

Have you done videos for organic chemistry?

[alicialedesma]

how would you calculate the speed of light with snell's law after knowing angle of incidence and angle of refraction?

[BWpepperr]

lol, You draw well derek. great vid, it helps so much.

[CRiswhatidrive]

Air has an index of refraction of 1.0003

[InvaderZim]

is the angle of refraction equal to the incident ray like in this problem always the case or is it only if it is in the same medium?

[tomastamulionis]

but if light comes from glass to air by 45 degree angle?