TRU0NC t)H SU'Pr{aM TP. HCM Kt{oA vaT Lv oet KU cONG noa xA ruol cntr ncnia vrET NAM DQc lip. Tg do - IIirnh phric DE TTII HET HQC PHAN CO HQC LUqNG TTIUAIT HQC 2008-2009 (Thdi gian ldm bai 90 phrit kh6ng te tncri gian phrit dd) cnu r. a) c:hri'g minn giao ho6n'ru: tr,;;i=",ir$-ir1). n d6 dp clq,ng ti'h [n,o,,]. b) cho toiln rtr L, = ib, - 2by.Hay tinh c6c giao ho6n ftU:,i,f ,dlrt,L,f . Cii'u II. Mrit electron trong nguyen tir hidro c6 trang th6i dugc m6 t6 bang; hdm sting da chuAn h6a nr,,1r1=(+); _ t'_ 2a^ "', d0= trat -v 7 I I I a) tinh c6c gid tri trung binh (r), (p) .iiu electron <r rr4ng th6i rr€n, b)'Iinr giri tritrung binh m6 men d6ng lucrng <L>. Cho cds hdm cdu ),oe = h . \u = ,Erosd. * Cffu III. N{Qt h4t trong tr5 tne mQt chi6u c6 thdnh cao v6 han, b€ n)ng a c6 th6 nhi6u lo4n U(x) = ).(a- x). tinfr v(x b6 chinh ndng lugng d6n bQc 2 cho c6c muc n6ng luqng. Cho hd.rn ridng vd ph6 ndng lu.crng ctra hat 6 t vn@)=llsinn4l, E,,=#, Vt(r.0,q)= -L.R,,, 3 8'l r -'(t) + ffi coso ll"'(r)' rrong c16 R2e(r) =(+)1(r-ft)t*, bdrr kinh gohr thri nhAt. t' a0 *2 tI. ,, )la mee: Chti !,: khdng ttngc sth dgng tdi liQu t-C4%6*e^d . ).(a- x). tinfr v(x b6 chinh ndng lugng d6n bQc 2 cho c6c muc n6ng luqng. Cho hd.rn ridng vd ph6 ndng lu.crng ctra hat 6 t vn@)=llsinn4l, E,,=#, Vt(r.0,q)= -L.R,,, 3 8'l. c:hri'g minn giao ho6n'ru: tr,;;i=",ir$-ir1). n d6 dp clq,ng ti'h [n,o,,]. b) cho toiln rtr L, = ib, - 2by.Hay tinh c6c giao ho6n ftU:,i,f ,dlrt,L,f . Cii'u. noa xA ruol cntr ncnia vrET NAM DQc lip. Tg do - IIirnh phric DE TTII HET HQC PHAN CO HQC LUqNG TTIUAIT HQC 200 8-2 009 (Thdi gian ldm bai 90 phrit kh6ng te tncri gian