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Re: Optics B/C
Posted: September 3rd, 2011, 6:03 pm
by quizbowl
Infinity Flat wrote:JSGandora wrote:How about for Division C?
It can't hurt to know it, but it's not something you should focus on.
You
do have a binder, so its okay to put in really obscure things that you think might just come up.
Re: Optics B/C
Posted: September 3rd, 2011, 7:20 pm
by smartkid222
quizbowl wrote:Infinity Flat wrote:JSGandora wrote:How about for Division C?
It can't hurt to know it, but it's not something you should focus on.
You
do have a binder, so its okay to put in really obscure things that you think might just come up.
Yeah, but somtimes it's hard to utilize something that's in the binder if you've never practiced with it before or done a sample problem.
Re: Optics B/C
Posted: September 3rd, 2011, 7:24 pm
by JSGandora
Well, as long as I know the equation it's fairly simple to plug in the numbers. But for conceptual things, that's a different story.
Re: Optics B/C
Posted: September 3rd, 2011, 7:43 pm
by blue cobra
I understand the Doppler Effect qualitatively, but could someone please help me understand how to do quantitative problems with it?
Re: Optics B/C
Posted: September 3rd, 2011, 8:51 pm
by chalker
blue cobra wrote:I understand the Doppler Effect qualitatively, but could someone please help me understand how to do quantitative problems with it?
Check out the Wikipedia page:
http://en.wikipedia.org/wiki/Doppler_effect
It's got some good formulas and links to other sites that let you simulate it.
Re: Optics B/C
Posted: September 5th, 2011, 12:27 pm
by blue cobra
chalker wrote:blue cobra wrote:I understand the Doppler Effect qualitatively, but could someone please help me understand how to do quantitative problems with it?
Check out the Wikipedia page:
http://en.wikipedia.org/wiki/Doppler_effect
It's got some good formulas and links to other sites that let you simulate it.
So do we use the formula for the Doppler Effect in classical physics:
f_0)
or must we adjust this because we are working with light, rather than sound?
Re: Optics B/C
Posted: September 5th, 2011, 1:14 pm
by Infinity Flat
blue cobra wrote:chalker wrote:blue cobra wrote:I understand the Doppler Effect qualitatively, but could someone please help me understand how to do quantitative problems with it?
Check out the Wikipedia page:
http://en.wikipedia.org/wiki/Doppler_effect
It's got some good formulas and links to other sites that let you simulate it.
So do we use the formula for the Doppler Effect in classical physics:
or must we adjust this because we are working with light, rather than sound?
You only need to use the relativistic doppler equation when one of the objects is moving near the speed of light.
Re: Optics B/C
Posted: September 10th, 2011, 1:26 pm
by foreverphysics
Is it true that this year, they're going to make Div B reflect on 2 mirrors for the Laser Shoot as opposed to 1?
Re: Optics B/C
Posted: September 10th, 2011, 3:22 pm
by chalker
foreverphysics wrote:Is it true that this year, they're going to make Div B reflect on 2 mirrors for the Laser Shoot as opposed to 1?
Not true. You have the OPTION of using up to 5 mirrors, but nothing in the rules 'makes' you use 2.
Re: Optics B/C
Posted: September 10th, 2011, 8:21 pm
by foreverphysics
chalker wrote:foreverphysics wrote:Is it true that this year, they're going to make Div B reflect on 2 mirrors for the Laser Shoot as opposed to 1?
Not true. You have the OPTION of using up to 5 mirrors, but nothing in the rules 'makes' you use 2.
...That requires more thought than I had previously given it...better get my partner cracking...