Physics 201, Concepts of Physics
HW #4 due Dec 4, 2012

(1) Is determinism compatible with chaotic behaviour, or not?  Explain.

(2) Which of the following is a conclusion of EPR's paper?
a.  If, without in any way disturbing a system, I can predict with certainty the value of one of its properties, then that property is an element of reality
b.  Quantum mechanics is a complete description of reality
c.  There is no spooky action at a distance
d.  Bell's inequalities are violated
e.  None of the above

(3) Which of the following conclusions may we draw from Bell's theorem?
a.  Quantum mechanics is incomplete
b.  Quantum mechanics is complete
c.  The world is incompatible with local hidden variables
d.  Quantum theory is incompatible with local hidden variables

(4) If I have a photon which I know would definitely be transmitted by a horizontal polarizer, then
a. what is the probability that it would be transmitted by a polarizer at 45 degrees?
b. what is the probability that it would be transmitted by a vertical polarizer?
c. what is the probability that if I sent it through a 45-polarizer and then a vertical polarizer, it would get through both?

(5) If I have a photon with a 15% chance of getting through a polarizer at 30 degrees, what is its chance of getting through a polarizer at 120 degrees?