... 63 ,2% C 0,37% D x: 10 B ; y: Li t l s ht nhõn ca cht phúng D 63 ,2% Cõu ap an Cõu ap an Cõu ap an Cõu ap an Cõu ap an A 11 C 21 A 31 B 41 C B 12 B 22 B 32 D 42 A C 13 B 23 D 33 D 43 C B 14 A 24 ... Khi din dung cú giỏ tr C2 = 4C1 thỡ tn s dao ng in t riờng mch l A f2 = 0 ,25 f1 B f2 = 2f1 C f2 = 0,5f1 D f = 4f1 Cõu 28 : Mch dao ng c to thnh t cun cm L v hai t in C v C2 Khi dựng L v C1 thỡ mch ... = 1,00 72 ( u ) v 1u = 931 MeV/c2 Nng lng liờn kt ca ht nhõn 10 Be l A 64,3 32 ( MeV ) B 6,43 32 ( MeV ) C 0,643 32 ( MeV ) D 6,43 32 ( KeV ) Cõu 48: Ht nhõn hờli ( He ) cú nng lng liờn kt l 28 ,4 MeV;...