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Câu hỏi: Chiết suất của nước đối với các tia đỏ, lam, vàng, tím tương ứng là ${{\text{n}}_{\text{D}}}\text{;} {{\text{n}}_{\text{L}}}\text{;} {{\text{n}}_{\text{V}}}\text{;} {{\text{n}}_{\text{T}}}$ được sắp xếp theo thứ tự giảm dần là
A. ${{\text{n}}_{\text{T}}}\text{} {{\text{n}}_{\text{L}}}> {{\text{n}}_{\text{V}}}{{\text{n}}_{\text{D}}}.$
B. ${{\text{n}}_{\text{D}}}\text{} {{\text{n}}_{\text{V}}}>{{\text{n}}_{\text{T}}}\text{}{{\text{n}}_{\text{L}}} .$
C. ${{\text{n}}_{\text{D}}}\text{} {{\text{n}}_{\text{V}}}>{{\text{n}}_{\text{L}}}\text{} {{\text{n}}_{\text{T}}}.$
D. ${{\text{n}}_{\text{D}}}\text{} {{\text{n}}_{\text{L}}}>{{\text{n}}_{\text{V}}}\text{} {{\text{n}}_{\text{T}}}.$
A. ${{\text{n}}_{\text{T}}}\text{} {{\text{n}}_{\text{L}}}> {{\text{n}}_{\text{V}}}{{\text{n}}_{\text{D}}}.$
B. ${{\text{n}}_{\text{D}}}\text{} {{\text{n}}_{\text{V}}}>{{\text{n}}_{\text{T}}}\text{}{{\text{n}}_{\text{L}}} .$
C. ${{\text{n}}_{\text{D}}}\text{} {{\text{n}}_{\text{V}}}>{{\text{n}}_{\text{L}}}\text{} {{\text{n}}_{\text{T}}}.$
D. ${{\text{n}}_{\text{D}}}\text{} {{\text{n}}_{\text{L}}}>{{\text{n}}_{\text{V}}}\text{} {{\text{n}}_{\text{T}}}.$
Chiết suất : ${{\text{n}}_{\text{Do}}}<{{\text{n}}_{Cam}}<{{\text{n}}_{\text{Vang}}}< {{\text{n}}_{\text{Luc}}}<{{\text{n}}_{Lam}}\text{}{{\text{n}}_{cham}}\text{}{{\text{n}}_{\text{Tim}}}.$
Đáp án A.