Physics 11.2.3b - Snell's Law Example

[sharon1881]

you said .5579 but you type .5597 :p hahaha lol anyway thanks for the helpful teaching :)

[ladymusiclover]

THANK YOU SO MUCH DEREK!!!

[mhmcupcakes]

Also, how do you double check if the answer is correct?? :(

[mhmcupcakes]

isn't the glass index reflaction 1.58? 

[derekowens]

@mhmcupcakes That is certainly possible. There are many different types of glass.

[skippyskater]

Thanks very much :), its kinda hard to do physics through distance education (at home) without some verbal help!

[lArOnLDBpRo]

at 2:45 u said ".5579 " but u wrote . 5597 :S correct that

[abcman]

Thanks alot bro, you help me out a lot. My physics teacher is literally useless, can you imagine someone who gets paid to teach but yet fails to do atleast one practise problem through out this semester. She's soooooo lazy I wanna slap her.

[Unitt9]

Nice explanation tnx

[masterchief9064]

thanks man, u explain it really well :)

[TheStaniG]

Of all the teachers who have attempted to teach me this, ur the first to succeed. Cheers!

[ShinjuHoshi]

i love u! u saved me

[boxedguilt]

These are brilliant, but could I be incredibly cheeky and ask if it would be possible for you to do a video on using Snell's law on, say, a prism where the angles aren't parallel?

Ty for all these vids though, they really help :]

[HurryingFever]

so why do you do sin-1 near the end of the equation

[derekowens]

Once we find the sine of the angle, we have to use inverse sine to find the angle. In other words, the goal is usually to find the angle, and Snell's Law just gives us the sine of the angle, so we then use inverse sine to find the angle.

Hope that helps,

D.O.

[FailingHurtz]

thanks i looked everywhere except youtube cause i thot it wouldnt be here... turns out it was the other way around thanks lots

[maxim2266]

aaah i hate sin hahah. wish me luck

[Watzgd1]

wow... that was simply great and the easiest way to do that type of question... thanks

[HurryingFever]

better than both my math and science teacher put together, my teachers are so dumb compared to you, you make it simple......

[cosminpreda90]

this is so kickass! thx alot

[Marzipanize]

i wish my college employed you

[cipro426]

thanks

[hacksign000]

I wished my school employed you.

[tranvostco]

omg thank you, this is very helpful for my test ^__^ i understand it better now, so thank you so much.