光导纤维在信息传递方面有很多应用,利用光导纤维进行光纤通信所

光导纤维在信息传递方面有很多应用,利用光导纤维进行光纤通信所依据的原理是(    )

A.光的偏振          B.光的全反射           C.光的干涉           D.光的色散

答案

B

[解析]考查光学知识。光导纤维通信是利用光的全反射,光从光密介质进入光疏介质,选项B正确。

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