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explain the physical significance of wave function
Determine the density matrix of a completely polarized beam-i.e. one which is split by a stern-Gerlach apparatus in ANY direction into 3 components of equal intensity.
what is a photon?
Question 1!
1. Let f(x) be a wave function. If A is an observable, acting on f(x), then saying that A is linear means that Af(x+y)=Af(x)+Af(y).

2.If f(0)=0 and f(1)=1, and we apply phase inversion to |+>, we get |−>.

3. If we apply inversion about mean to |+> we get |+>.

4. If we apply inversion about mean to |−> we get |−>.

5.The state of minimum energy of the Hamiltonian H=(1551) is |−>.

6.The ground (minimum) energy of the above H is −5.

I need to understand which of these statements are true or false.
If velocity of light 'c', Gravitational constant 'G' and Plank's constant 'h' be choosen as fundamental units, find the dimension of mass, length and time in this new system.
I was playing the game "Back to the Future" on the Ipad and came to find a quote that "The Doc" said. He seemed to be talking about "Ivanov's Conundrum". Is there such a thing?

Also, can you explain to me the Heindunberg Theorem and the Shrodinger Equation?

I'm only 16 years of age so can you try to explain it in the easiest words possible?
I would be very delighted if you could. Thank you.
Assume that an electron is located somewhere within a region of atomic size. Estimate the minimum uncertainty in its momentum by assuming that this uncertainty is comparable with its average momentum. Estimate the average kinetic energy of the electron.
is there any electric or magnetic field around photons (like em waves)? and if yes,what are their directions?
thanks a lot!
I'm doing an assessment on the photoelectric effect, and I would like to use your article for information. I was wandering if you could tell how to reference your article, its called "Where Could Photoelectric Effect Lead to?"
With the recent buzz about the Higgs boson, two questions arose to me:

1. What's the difference between it and 'graviton', described in wikipedia here: http://en.wikipedia.org/wiki/Graviton ?

2. Is the Higgs Boson matter or antimatter? Since (according to my limited knowledge) matching matter and anti-matter have the same mass, could it be that the Higgs Boson is actually a 'neutral' particle, in relation to that, or is there actually an anti- Higgs Boson that does the same for antimatter?

Thanks in advance for your reply!!!