Physics Help Needed.

[werto165]

Really not sure about this one. Anyone have an idea? 

[RatedBlam]

I thought it was about the dish needs to be curved so that the focus point is in the detector.

But I don't know if that's correct since you'd need to use "quantum behaviour of photons"

[DeViLzzz]

This not the PhysX I was looking to discuss. Damn!

[werto165]

This not the PhysX I was looking to discuss. Damn!

Sorry no rigid body discussion going on here .

[GuruMeditationError]

Really not sure about this one. Anyone have an idea? 

 

 

Use ideas about quantum behaviour of photons.

 

What do you know about the quantum behaviour of photons? And how does it relate to this?

 

Edit: or in other words...what did the course teach you about the quantum behaviour of photons and how can you use it to answer this question? ;0)

 

Clue: Look back through your notes or consult the text books.

 

(not information I have) :0/ :shrug:

[Valhallatier]

magic...


in all seriousness, thats some bullshait question. dont answer it, the more you think about it the stupider you are.

[Oasis]

So you have to use the concept that light acts as a wave and a particle, but I don't know how the curvature of the dish would be affected by this. Good luck, op.

[werto165]

What do you know about the quantum behaviour of photons? And how does it relate to this?

 

Edit: or in other words...what did the course teach you about the quantum behaviour of photons and how can you use it to answer this question? ;0)

 

Clue: Look back through your notes or consult the text books.

 

(not information I have) :0/ :shrug:

Well I found the mark scheme it tooks ages to find... and it is just not that good of an answer to be honest: to create many paths of equal length / trip times same so high probability photons arrive. I guess it makes sense but doesn't really relate to the quantum nature of the photon, I guess it does slightly in the fact that it can travel many different paths but still...

[GuruMeditationError]

Well I found the mark scheme it tooks ages to find... and it is just not that good of an answer to be honest: to create many paths of equal length / trip times same so high probability photons arrive. I guess it makes sense but doesn't really relate to the quantum nature of the photon, I guess it does slightly in the fact that it can travel many different paths but still...

 

To be completely honest with you I've not studied this, I kind of just assumed the answer would be more forthcoming if looked at from the angle hinted at in the question? 

 

Personally, based on my limited (and very basic) knowledge, I'd say it would need to be angled to reflect the photons into the detector (like a lens or a concave mirror that can focus light). Where the quantum behaviour of photons enters the equation I've really no idea, I kind of just assumed it must do at some point for the question to ask for the answer to relate to it?

 

Is it something you can ask a tutor about or does it actually count towards your grade?

 

It seems strange that they'd require an answer that isn't addressed by the information in the course, but who knows?  :wacko:

[werto165]

To be completely honest with you I've not studied this, I kind of just assumed the answer would be more forthcoming if looked at from the angle hinted at in the question? :0/

 

Personally, based on my limited knowledge, I'd say it would need to be angled to reflect the photons into the detector (like a lens or a concave mirror that can focus light). Where quantum behaviour of photons enters the equation I've really no idea, I kind of just assumed it must do at some point for the question to ask for the answer to relate to it?

 

Is it something you can ask a tutor about or is this actually a marked assessment?

 

It seems strange that they'd ask you a question that isn't addressed by the information in the course but who knows?  :wacko:

Well this is a very old past paper, like 10 years old at this point, most likely the syllabus has changed quite a bit, it covers similar things but not all of it is similar. 

[GuruMeditationError]

Well this is a very old past paper, like 10 years old at this point, most likely the syllabus has changed quite a bit, it covers similar things but not all of it is similar. 

 

Okay, well that could explain it then.

 

Do you have any idea what the answer that they're looking for is? :confused:

 

It seems weird to me that they'd give you that as a revision question. :0/

[werto165]

Okay, well that could explain it then.

 

Do you have any idea what the answer that they're looking for is? :confused:

 

It seems weird to me that they'd give you that as a revision question. :0/

Well I'm redoing my last year in college, so I'm doing most the work at home, however I can go into school if I need some help, I've been doing fine so far. Just last year I didn't really put any effort into my work and came out with grades that were too low for where I wanted to go. Doing work independently is much easier I feel, as you can go through at your own pace. However it's easy to get distracted with all the things at home, mostly just pissing around on the forum and on my PC in general. 

[GuruMeditationError]

Well I'm redoing my last year in college, so I'm doing most the work at home, however I can go into school if I need some help, I've been doing fine so far. Just last year I didn't really put any effort into my work and came out with grades that were too low for where I wanted to go. Doing work independently is much easier I feel, as you can go through at your own pace. However it's easy to get distracted with all the things at home, mostly just pissing around on the forum and on my PC in general. 

 

Yeah, I know what that can be like. There's a ton of stuff I should be getting on with and I"m still sitting here. :0/

[T.Vengeance]

Really not sure about this one. Anyone have an idea? 

 

Only thing I could come up with is the wave-particle duality. So if photons were just particles, then any sort of curvature, even a steep parabola would work. But because photons also behave like a wave, the parabola has to be shallow enough to catch lower frequencies? Just a thought. I don't actually know if it works that way though. I'm sort of connecting the Rayleigh scattering with the wave-particle duality.

[GuruMeditationError]

Only thing I could come up with is the wave-particle duality. So if photons were just particles, then any sort of curvature, even a steep parabola would work. But because photons also behave like a wave, the parabola has to be shallow enough to catch lower frequencies? Just a thought. I don't actually know if it works that way though. I'm sort of connecting the Rayleigh scattering with the wave-particle duality.

 

I was going to suggest that's why the struts don't interfere with the image but I guess that's not really about the curvature? :shrug: :DryPhisicsLols: 

[GrimNeo]

LinusPhysicsTips

[NannerBeans]

The detector can only detect light that is higher a certain photon/area, so if the dish was bigger and curved, then it redirects more photons into the same area which would then make a higher photon/area and therefore, better chance of being detected. 

[TheDev]

Photons act as a wave function and a particle at the same time meaning the dish has to be able to "reflect" a particle and a wave at the same time. I think that's it