QUIZ # 2 - PHYS 300 (Mendes, spring 2010)
Name:
(40 credits)
1. (a) The energy required to remove an electron from sodium is 2.3 eV. What is the
cutoff wavelength for photoelectric emission from sodium? (b) Does sodium show a
photoelectric effect for yell
QUIZ # 1 - PHYS 300 (Mendes, spring 2010)
Name:
(50 credits)
1) At a given temperature, max 650 nm for a blackbody cavity. What will max be if
the temperature of the cavity walls is increased so that the rate of emission of spectral
radiation is doubled?
.1. Write down a formula specifying the points in a one—dimensional reciprocal
lattice.
A
'2. Supmme al :2 ("L/‘20 + and a3 2 (1/202 + i). What is al x 3.2?
3. Using Bloch’s theorem, write down a. formula. relating the functiens
-q7:k(r + l) and with). (5