Brief answers to exam #2, 2010 A
NOTE: #5 tests material we have not covered yet. For exam #2
2011, you will be responsible for uncertainty definitions and
interpretation, but no uncertainty equations.
1b 2a 3d 4c 5a 6d 7c 8c (typo - should say +.25c) 9b 10d
11a) electron ejected from the metal b) 7.25X1014 Hz c) 132 nm
12a) 0.13 pm b) No. Diffraction effects only occur if
wavelength and slit are similar in size. Here wavelength is much
smaller than slit size.
13a) -120 mph b) +0.156 c
14a) 2.8X10-8 s b) 3.1 m c) 0 m