e0
cmo
nuc
vA
DAo
TAo
DAI
HOC
UUP
Hq
ud,t€n
thi
s'inh:.
56 bd,o
danh:
KY
THI
TUYEN
SINH
SAU
DAI HoC
xAvT 2006
M6n
thi: Vdt
li
Ly
thuyct
lrtctng
hat
vi
D),nh
cho:
Cao hoc
Thdi gian
lb,m bd,i: 180
phirt
A.
CO HQC
LUQNG
TU
Cdu
1: Dao
hdm
cfia to5,n
tfi
theo
thdi
gian
vb, tich
phAn
chuydn
dOng trong co hoc
ttt.
Chfing
minh
rang n5,ng
luong
E vb, hinh
chi€ti
p,
ctra
xung luong
tr€n truc
Or cta
mO
chuyOn
dOng
tu
do lb,
nhfrng tich
phAn
chuydn dOng.
CAu 2: Trong
hC
toa dO
cau
(r,0,@),
toan trl hinh chi€u mOmen
xung h-tong
co dang:
^al
L,:-ih^,v6t0<0<.2n.
-d6
1. Tim
tri ri€ng
va ham
ri€ng
chud,n
ho5,
cria to5,n tfr
L".
2.
Tim
x5,c
su6t
do dudc
c5,c
tri ri€ng L,
khi hat 6
trang
thai ,!@)
-
trring
binh
cfi,a
L"
6 trang
tliSi
ndy.
cos
@
va
tri
B VAT
IY
THONG
KE
CAu
3: Th6ng
ke luong
trl
cira h€ hat boson
dOng nh6t
:
ThOng
k€ Bose-Einstein,
CAu 4:
Cho mQt
he khi ly
tLr6ng.
a) Til
phdn
b6
chinh
tdc
Gibbs,
hay
suy ra
ph6,n
b6
Ma-xwell-Boltzmann
dOi
v6i
h€
dilt
trong
trudng
lr,rc.
b)
Viet
bi€ii
thirc
cr'ia
s6
phAn
tir
kiri ly
tudng
c6
dO
l6n vAn
t6c ndm
trong
khoing
lr,,,u
I
dul,
trong
do du Ia luong
bi€n
thiOn
vi
c6p
cfra dO ldn
vdn
t6c
u.
c)
Tim gi6
tri trung
binh,
gia
tri tod,n
phudng
trnng
binh,
gi6
tri
c6
x6.c
sr-rAt cuc
dai
ciia
vAn
t6c
klii ly
tudng.
Cho
bi€t
cac
tich
ph6n
(vdi
a
> 0):
1,3
5 (2,
-
1)
/,*
)n
-^-2
,
,r","
p
g&
d/r
-
vw&-
2n+t
nt
2A"+1'
n: I,2,3,
n
-
0,I,2,
Ghi chti";
Thi
sinh khOng
duqc
st
dung
td,i li€u. Cd"n
b0 coi
thi
kh7ng
gidi
thich gi
th,€m.
/r*
,2n*7
e-o" d"r
-
7(
Arrt+1
.
DAo
TAo
DAI
HOC
UUP
Hq
ud,t€n
thi
s'inh:.
56 bd,o
danh:
KY
THI
TUYEN
SINH
SAU
DAI HoC
xAvT 2006
M6n
thi: Vdt
li
Ly
thuyct
lrtctng
hat.
d/r
-
vw& ;-
2n+t
nt
2A"+1'
n: I,2,3,
n
-
0,I,2,
Ghi chti";
Thi
sinh khOng
duqc
st
dung
td,i li€u. Cd"n
b0 coi
thi
kh7ng