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F3Q.
T)
(
rrUdrvc n6 cui
DHSp rp. rranur hoi Xi hQi Chfi nghia ViQt nam
CQng -
KHoA vAr r-Y Hanh phfc
D6c l6p - TrJ do -
rru Hec pnAN: vAr ry rudNc
BS KE _ Hp cuNHAN
lim bdi:
Thdi gian phrit
120
I : Khf electron trong
CAu Fe.
U Dung c6ng thric tt4 t5 tr4ng th6i dk(p) cria c6c electron c6 ttQ l6n
dQng lugng
trong khoingp viLp + dp dE mn truc fidp dQng luqng Fermi
vd suy ra bi6u thric cria n[ng
luqng Fermi.
2/ Cho bii5t so electron ho'6 tr! cta m6i nguyon ta Feh 2 vd mric n6ng luqng
Fermi cria
Fe ld ll,l eV- Cho h=6,625x10-3a,/.s, kh6i luqng electron : 9,lx
l0-3rftg: H6y tinh mflt rlQ
nguy6n tft Fe. Cho : leV = l,6x 10-reJ
Cffu II: S{ ne! trung binh cria khi Bose ti tu&ng
llHay viist bi6u thric vd vE sg biiSn thiOn cfia s6 hpt trung binh N theo ndng lucrng
cria
he khi Bose li tudng 6 nhiet d0 z vd c6 th6 ho6 hqc p. Gihithich.
2/vc ton cunq mQt dd thi cdc
nguon tai.lieu . vn