... N0Tt− 2 Tt− 2 = 0NN. =>Tt1 2 −= 01NN= 20 % = 0 ,2 (1); Tt 2 2−= 0 2 NN= 5% = 0,05 => TtTt 2 1 2 2−−= Ttt 12 2−= 05,0 2, 0= 4 = 2 2 Ttt 12 −= 2 ... N0te.λ−= 22 22 05,10/0NNNTt== => N = 20 20 10.5 ,2 22 10.07.7= ngt. phóng x ti thi i+m t.: H = λ. N = 20 ln 2 0,693. .2. 108 .24 .3600NT= H =14310 2, 056.10 2, 506 ... 22 “Bin rng tr/i cao con v0y vùng” ÁP ÁN TR.C NGHI,M 1 B 2A 3A 4D 5B 6B 7D 8A 9A 10A 11 A 12A 13A 14D 15B 16D 17B 18C 19D 20 C 21 B 22 A 23 D 24 C 25 D 26 A 27 B 28 C 29 D 30B 31D 32B...