这道题怎么做:阅读下列短文,回答问

2024-12-03 13:22:13
推荐回答(1个)
回答1:

(1)B;
(2)解:
λ 1 = =0.3m,
λ 2 = =0.03m,
波长在0.3m到0.03m之间;
(3)0.012 s.