HoolaBaloola Posted May 13, 2012 Report Share Posted May 13, 2012 How did it go guys? I picked Quantum and Nuclear Physics + Astrophysics.HOPING FOR A 7!!!! Reply Link to post Share on other sites More sharing options...
Kasper Petersen Posted May 13, 2012 Report Share Posted May 13, 2012 Went alright - I did Digital Technology and Astophysics. Reply Link to post Share on other sites More sharing options...
kkay Posted May 13, 2012 Report Share Posted May 13, 2012 I did Astrophysics and Quantam & Nuclear too. It went really well, I'm hoping it's going to bring my grade up a bit, since I did pretty bad on P2. Reply Link to post Share on other sites More sharing options...
uusinjsh Posted May 16, 2012 Report Share Posted May 16, 2012 Quantum&Nuclear + Sight and wave phenomena.. Reply Link to post Share on other sites More sharing options...
HoolaBaloola Posted May 16, 2012 Author Report Share Posted May 16, 2012 (edited) What was the age of the rocks in nuclear? And the maximum kinetic energy of electrons in quantum? I got 5eV and 2.6 billion years for the age of the rocks ;pIf i remember right: Hc/lamba + phi was the kinetic energy, which was 3eV + 2eV to give 5 eV. And the rocks? 23% left means it has gone through around 2 half lives? so 2x(half-life) would be around 2billion-2.6billion yrs? Edited May 16, 2012 by HoolaBaloola Reply Link to post Share on other sites More sharing options...
uusinjsh Posted May 16, 2012 Report Share Posted May 16, 2012 (edited) as long as the equation 0,23=e^-lambda*t was correct, i am safe, but i don't remember the age precisely regarding the kinetic energy - was the wavelenght given? if i recall correctly, it was, and then i think i found the frequency and max kinetic energy is Planck's constant x frequency, no? can anyone confirm that the two graphs in sight&wave phenomena part about polarization were such that in the first one at 0 and 180 degrees intensity is Io, but at 90 degrees it is zero, in the second one at 0 and 180 degrees - intensity is Io, but at 90 degrees it is 0,5Io? Edited May 16, 2012 by uusinjsh Reply Link to post Share on other sites More sharing options...
HoolaBaloola Posted May 16, 2012 Author Report Share Posted May 16, 2012 (edited) as long as the equation 0,23=e^-lambda*t was correct, i am safe, but i don't remember the age precisely regarding the kinetic energy - was the wavelenght given? if i recall correctly, it was, and then i think i found the frequency and max kinetic energy is Planck's constant x frequency, no? can anyone confirm that the two graphs in sight&wave phenomena part about polarization were such that in the first one at 0 and 180 degrees intensity is Io, but at 90 degrees it is zero, in the second one at 0 and 180 degrees - intensity is Io, but at 90 degrees it is 0,5Io? Wavelength of 400 nm was given, so to find the energy of photon, its plancks constant x speed of light / wavelength , the speed of light over wavelength gives the frequency As for the age of the rocks, i just did that 23% is somehow 2 around half lives? and 1 half life was around 1 billion yr? i could have gotten that one wrong i admit. But still went pretty well! I somehow did the equation method and got 2.7 billion yrs!! That was very close to mine 2.6 billion years lol!! Edited May 16, 2012 by HoolaBaloola Reply Link to post Share on other sites More sharing options...
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