7. The frequency of an electromagnetic wave is \(6.0 \times 10^{14}\) Hz. What is its wavelength?
(A) \(5 \times 10^{-7}\) m
(B) 0.2 \(\mu\)m
(C) 500 nm
(D) 1000 nm
答案:登入後查看
統計: 尚無統計資料
統計: 尚無統計資料