NAME PHYSICS 222 FINAL EXAM MAY 8 2009 PLEASE PRINT electron Start 25 1 For an infinite square well of width a find the allowed energies for an and clearly with the time independent Schroedinger equation and show each step carefully Se pokc s How 2 20 2 The intensity of radiation from the sun at the surface of the earth is 1600 J m 1011 much mass does the sun lose in an hour The distance between the earth and sun is 1 49 x Show your work clearly m 8 i f rr 1 t4 c 4 4At 2 4 4 Xk x1o 4 q z KJc 6A1 3 78XtD it 25 3 A rocket ship traveling away from the earth at O 8c sends a signal to earth that they observe an enemy ship in the distance ahead of them Thirty minutes later as measured by the captain of the rocket ship they encounter the enemy and a battle follows How far would an earth observer calculate the rocket traveled between the time the signal was sent and the time of the battle Show your work clearly 1q tft LD a At t ii ccco 7 E 4 L t 4 4 1 1Qifl1 ercaei I 4 3x c Q7 1 10 4 At what speed would the density of a cube double a 0 71c b 0 82c c 0 87c 2c 0 p 9 p Jo Mkto I 2 27 t2 3 C If this is caused by 10 5 One star appears blue white while another appears yellow orange temperature difference then hite star a the blue white star is hotter b the yellow orange star is hotter c the blue w is brighter d the yellow orange star is brighter lb fLL 4rC A T L l LL t 54 i c ted with this 10 6 A gamma ray has an energy of 1 MeV What is the wavelength associa photon c 1 24 x 10m d a value greater than 800 nm 10 m b 1 24 x 9 10 m a 1 24 x 2 4c qt O 3XlQ S r tz lKio the 10 7 Electrons are emitted from a surface when light of wavelength 500 rim is shone on n of the surface but electrons are not emitted for longer wavelengths of light The work functio surface is a 0 40 eV b 0 60 eV c 2 5 eV d 4 0 eV 42 if f3X7t4 c ft 10 8 What is the energy of a photon that has the same wavelength as a 100 eV electron a 50 eV b 100 eV c 200 eV d 10 000 eV E eOeV 4 e 1Oc 14 Io tr ktc7 e iXio 10 9 What is the probability of finding a particle in the region from x ito x 2 if its wave 2 in that region function is F 0 030 x 0 d 2 2 c 6 0x1 10 3 b 3 4x 0 3 a 5 6x1 9 X 3 I P L z 10 10 If a particle in a rigid box has a ground state energy of 1 eV how much higher in energy is the next state a L eV b 2 eV c 3 eV d none of these 1E ii tEi V Am decays by alpha particle emission The daughter isotope in this case is The 10 11 241 atomic numbers of Np Pu Am Cm and Bk are 91 92 93 94 and 95 respectively Bk d not given Np c 245 a 237 Np b 239 IVY
View Full Document
Unlocking...