Quiz2Solution - Name Student ID Quiz#2(Closed book Allowed...

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------------- -------- Name: Student ID: Quiz #2 (Closed book. Allowed: calculator and one information sheet written on both sides) Physics 113B Quantum Mechanics Monday, November 1,2010 1. (3 points) The white dwarf star Sirius B has a surface temperature of25,000 K, and it is measured that the wavelength ofthe maximum emitted radiation is 120 nm. Ifthe surface temperature is decreased to 20,000 K, what is the wavelength ofthe maximum emitted radiation? /\7 ~ ~t~t- 1II1vi -3 _ 3.c )('0 17J k ( (,2. .c )( ,;~) (,,:;cvo I<. ) 2. (6 points) Suppose that there are two particles that are distributed in three energy states EI, E2, and E3. The degeneracy is one for each of the states. . (a) (~ ~o\n~) Show how me two ~artic\es can be distributed among the three states Ifthey are 1n this case, label the partIcles A and B. E , E 3. - AB A& 68 1 ~J ("1) B Ii A B £3> rr A 6 8 n- 1 A B
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- - (b) (2 points) Show how the two particles can be distributed among the three states ifthey are identical bosons. Label the two particles as
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Quiz2Solution - Name Student ID Quiz#2(Closed book Allowed...

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