Tốc độ lan truyền sóng dài là
A.\({{2.10}^{6}}\,\,m/s\).
B.\({{2.10}^{8}}\,\,m/s\).
C.\({{4.10}^{6}}\,\,m/s\).
D.\({{4.10}^{8}}\,\,m/s\).
A.\({{2.10}^{6}}\,\,m/s\).
B.\({{2.10}^{8}}\,\,m/s\).
C.\({{4.10}^{6}}\,\,m/s\).
D.\({{4.10}^{8}}\,\,m/s\).
Loga
Hóa Học lớp 12
