| 1 | а) Q =  T4, = ( 2/15)(k2/ 3c3); б)  max/kT  2.84 |
| 2 | а) N4 108 см-3; б) N400 см-3 |
| 3 |  |
| 4 | Ek 800 МэВ |
| 5 | а) E; б) Ek
me4/22 |
| 6 |   HD 0.33A, DT0.11A |
| 7 |  |
| 8 | 4.13 |
| 9 | E 37 кэВ |
| 10 | < x > = < p > = 0, Dx = a2/2, Dp
= 2/2a2 |
| 11 | Lz = +,
 , < Lz > = 0 , DLz = 2 |
| 12 |  ,  , n = 1,2,3... |
| 13 | < r > = 3/2a0, rmp = a0,
a0 = 2/me2 |
| 14 | T = 0, R =1 при E < V0 |
| T = 4k1k2/(k1 + k2)2,
R = (k1 - k2)2/(k1 + k2)2
при E > V0, где k1 = (2mE)1/2/ , k1 = [2m(E - V0]1/2/ |
|
| 15 | 1,3SPD; 1SD, 3P |
| 16 | (1s1)2S1/2; (1s1)1S0; (1s22s1)2S1/2; (1s22s2)1S0; (1s22s22p1)2P1/2; (1s22s22p2)3P0; (1s22s22p3)4S3/2; (1s22s22p4)3P2; (1s22s22p5)2P3/2; (1s22s22p6)1S0. |
| 17 | 3p1/2,3/2 2s1/2, 3s1/22p1/2,3/2, 3d3/22p1/2,3/2, 3d5/22p,3/2. |
| 18 | две компоненты, ~ 10 см |
| 19 |  |
| 20 | 2 - в слабом, 5 - в сильном поле |