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Refraction problem help please :)
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11-10-2012 7:32pm#1
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Since the light is going from the diamond into air rather than air into diamond we must put the refractive index under 1 (explained on pg 30 of real world physics)...so instead of 2.42 it is 1/2.42 which works out to be .4132. Then you let that equal to sini /sinr, r being 15 degrees and you should come out with 6.1 degrees
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Thanks so much haha that was bothering me all day!!iLikePiano99 wrote: »Since the light is going from the diamond into air rather than air into diamond we must put the refractive index under 1 (explained on pg 30 of real world physics)...so instead of 2.42 it is 1/2.42 which works out to be .4132. Then you let that equal to sini /sinr, r being 15 degrees and you should come out with 6.1 degrees0 -
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Ah ok:) oh it's fine now I googled the solutionFudgeBrace wrote: »If you have my book ( real world physics) could you please help me with q 5 on page 34?
Nah I have Investigating Physics by Andrew Kenny, can you type it out? thanks anyhoo haha 0 -
FudgeBrace wrote: »Ah ok:) oh it's fine now I googled the solution thanks anyhoo haha
Ah there's a website with all the solutions for that book, buzzkill:pac:0 -
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FudgeBrace wrote: »
Thanks so much haha that was bothering me all day!!iLikePiano99 wrote: »Since the light is going from the diamond into air rather than air into diamond we must put the refractive index under 1 (explained on pg 30 of real world physics)...so instead of 2.42 it is 1/2.42 which works out to be .4132. Then you let that equal to sini /sinr, r being 15 degrees and you should come out with 6.1 degrees
No problem! Happy to help, it was good revision for me too 0 -
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Yup that's the website. I only Googled "Real World physics" to see if I can view the book online and it came up :pac:FudgeBrace wrote: »
That's exactly what I googled!! LololiLikePiano99 wrote: »
I never knew of such a website until I googled "real world physics solutions" and this came up http://www.thealy.com/LCPhysics/TBOOK.PDF
how amazing is this? Wish I'd known about it sooner before I spent a good 40 mins trying to figure out a question today!
Unfortunately I can't find one for my book
How many topics did you cover so far in 5th year?0 -
iLikePiano99 wrote: »
I never knew of such a website until I googled "real world physics solutions" and this came up http://www.thealy.com/LCPhysics/TBOOK.PDF
how amazing is this? Wish I'd known about it sooner before I spent a good 40 mins trying to figure out a question today!
Haha that's the job... 0 -
We've finished reflection, refraction, lenses, spherical mirrors..!
Yup that's the website. I only Googled "Real World physics" to see if I can view the book online and it came up :pac:FudgeBrace wrote: »
That's exactly what I googled!! LololiLikePiano99 wrote: »
I never knew of such a website until I googled "real world physics solutions" and this came up http://www.thealy.com/LCPhysics/TBOOK.PDF
how amazing is this? Wish I'd known about it sooner before I spent a good 40 mins trying to figure out a question today!
Unfortunately I can't find one for my book
How many topics did you cover so far in 5th year?0 -
Yup that's the website. I only Googled "Real World physics" to see if I can view the book online and it came up :pac:FudgeBrace wrote: »
That's exactly what I googled!! LololiLikePiano99 wrote: »
I never knew of such a website until I googled "real world physics solutions" and this came up http://www.thealy.com/LCPhysics/TBOOK.PDF
how amazing is this? Wish I'd known about it sooner before I spent a good 40 mins trying to figure out a question today!
Unfortunately I can't find one for my book
How many topics did you cover so far in 5th year?
I've done temperature, circular motion, linear motion, forces, momentum and gravity 0 -
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its fairly handy, circular motion was a bit of a weird concept though hahah
I think my teacher wants to get all of mechanics done by november, and then we're doing light i think :L0 -
I want mechanics naooo
its fairly handy, circular motion was a bit of a weird concept though hahah
I think my teacher wants to get all of mechanics done by november, and then we're doing light i think :L
Light is eaaaasssyyyy..probably why some teachers start with light. I don't understand why my class is strugging with it though
There's like..2 forumulae..and a half kinda. They're almost too easy to manupilate 0 -
I want mechanics naooo
its fairly handy, circular motion was a bit of a weird concept though hahah
I think my teacher wants to get all of mechanics done by november, and then we're doing light i think :L
Light is eaaaasssyyyy..probably why some teachers start with light. I don't understand why my class is strugging with it though
There's like..1 forumula..and a half kinda. They're almost too easy to manupilate
ugh I've done like a million formulas...and derivations. ew.0 -
Sweet
I want mechanics naooo
its fairly handy, circular motion was a bit of a weird concept though hahah
I think my teacher wants to get all of mechanics done by november, and then we're doing light i think :L
Light is eaaaasssyyyy..probably why some teachers start with light. I don't understand why my class is strugging with it though
There's like..1 forumula..and a half kinda. They're almost too easy to manupilate
ugh I've done like a million formulas...and derivations. ew.
I'm starting Linear Motion during mid term for Applied, can't wait on Physics :pac: .
There are loads of good videos online for Physics btw if anyone is clueless about it just search the chapter on YT or websites like Khan Academy 0 -
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hmmm idk... maybe if it travels say 10km east and then heads back 5km west, its displacement will be 5km east, but it would be heading at a westward velocity? idk, complete guess tbh
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Can it? :eek:
Apparently so, says my book.hmmm idk... maybe if it travels say 10km east and then heads back 5km west, its displacement will be 5km east, but it would be heading at a westward velocity? idk, complete guess tbh
I was thinking something along those lines in my head, I just couldn't fully grasp it and put it on paper. Thanks. 0
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