physics 2008- einstein model of light (1 Viewer)

[whatever1000]

08 physics HSC exam- einstein model of light

Hey everyone could i just get some thoughts on the einstien question about his theory of relativity and explanation of the photoelectric effect leading to the reconceptualisation of the model of light.

I explained relativity and then the experiments on light following, importantly plancks theory of photons. Then said Einsteins explanation of the photoelectric effect show light as a wave and particle.

Did I miss anything?

 

[Aaron.Judd]

Re: 08 physics HSC exam- einstein model of light

Light is quantisised etc.
The speed of light is absolute, everything lese is now relative etc.

 

[jasonml]

Re: 08 physics HSC exam- einstein model of light

Light is quantisised etc.
The speed of light is absolute, everything lese is now relative etc.

hope you didn't write that.

 

[nicko1990]

Re: 08 physics HSC exam- einstein model of light

hmmm hope you wrote stuff about how quantisation of light allowed him to reconcile black body and photoelectric effect etc, and also the consequences of relativity (relativity of simultinaeity, time+mass dilation, length contraction)

 

[kangms]

i wrote that in both of his models, he required help from the previous experiments from others (Morley and Hertz), then with the result of the previous experiment, he explored why the result had occurred and that's how he Reconceptualised the model of light

 

[whatever1000]

Haha maybe not as well as you may have but I think I got my point across, just wondering what did you get in the trials, are they harder and do the teachers mark them harder?

I got 69 what would that equate to for the HSC, how would that get scaled?

 

[kangms]

me? i got 73. The teacher didn't mark that hard. I wrote alot of BS in the HSC exam though. Just wrote anything that came up in my mind that related to the question. Pretty cool. i know i'm not normal saying this, but i won't mind doing the test again. It was fun. LOL...seriously

 

[leisl1990]

particle model of light ie photon from the study of photoelectric effect
and the absolute speed of light regardless different frame of references.

 

[Mind-Revolution]

Re: 08 physics HSC exam- einstein model of light

Hey everyone could i just get some thoughts on the einstien question about his theory of relativity and explanation of the photoelectric effect leading to the reconceptualisation of the model of light.

I explained relativity and then the experiments on light following, importantly plancks theory of photons. Then said Einsteins explanation of the photoelectric effect show light as a wave and particle.

Did I miss anything?

I wrote something along the lines of...

Speed of light = constant, thus space and time become relative (v = d / t example). Leading to length contraction / time dilation.

Then, something about light in terms of wave-particle duality.

I don't really remember the exams.

 

[henry08]

Re: 08 physics HSC exam- einstein model of light

hope you didn't write that.

Whats wrong with what he wrote?

 

[iEdd]

Re: 08 physics HSC exam- einstein model of light

Because it is not relative*. It dilates or contracts.

*In the purist sense of the word, relative means proportional**. While it is correct to say things like length are redefined as relative to light, it is not correct to say that everything is relative.

**Oxford dictionary.