ItVith respect to visible light, an interstellar cloud
of atomic hydrogen gas is
A) opaque
B) transparent
C) opaque for most wavelengths but transparent
for a some wavelengths
D) transparent for most wavelengths but opaque
for some wavelengths
E) I haven't the faintest idea
With respect to visible light, an interstellar cloud
of atomic hydrogen gas is
A) opaque
B) transparent
C) opaque for most wavelengths but transparent
for a some wavelengths
(p)transparent for most wavelengths but opaque
f-or some wavelengths wilt
(i,,. uu
efr
^b*.b
u?yu) o"ly i{
r'.l -* E^- €-6 &,
E) I haven't the faintest idea
2
ena--rXl
bvøls
,tF !.yln5"-^.
Which of the pictures best represents the
potential energy ftmction for an eleckon in
thin one-dimensional wire of length L?
(î)
a
Slhich of the picfures best represents the
potential energy fr¡nction for an electron in
thin one-dimensional wire of length L?
a
4o lu¿ eJnrÇ-' o"* F
-;..e 1",* 1".1".) :. y.+.r+¿
n¿zé- ene¡q'l
ln;gÁer @4uu1 s,le,
*,
|.,.^.,et- ¡a5',Se-
ls
the electron wavefunction shown an energy
eigenstate?
A)
Yes
C) lt is at certain times but not at other times
fr"t^V"lily
{ì^e ,
^*3f
'+'.
À.0^r',4y
jç
cl"",ïl,g -ì/h
,. ,.'t ^
sfATfo,rJAßI SfAtZ
uyu^s-loÇ, ade
=þfr','norf
clr r*,+
¡ = *,
a|
pr,,*t =
lÞu/,f =
¡
,
srnce
rr¿ 5.t
,
",Çut
l.l,,
al[
/.tt
ls
the electron wavefunction shown an energy
eigenstate?
A) Yes
B) No
C) lt is at certain times but not at other times