電磁波 波長/頻率

γ線         〈1 nm

x線          0.0005-50 nm

紫外線      5-400 nm

可見光      400 nm   450 nm   500 nm   550 nm   600 nm   650 nm   700 nm

                        紫色        靑色        綠色       黃色        橙色       紅色

紅外線      700-500,000 nm (0.7-500  μm)    (0.75-1000 μm)

近紅外線   0.75-3 μm                                  (0.75-4 μm)

遠紅外線   25 μm-                                       (4-1000 μm)

 

短波         50,000,000-10 MHz    (6 μm-30 m)            FM TV 500-50 MHz 

中波         10-1 MHz                  (30-300 m) 

長波        〈1 MHz                     (＞300 m)

 ………………………………………………………………………………………………………………………………………

γ線             x線             紫外線               可見光                紅外線                  短波            中波           長波

〈1 nm   0.0005-50 nm   5-400 nm    400 nm--700 nm    700-500,000 nm    6 μm-30 m    30-300 m    ＞300 m

 …………………………………………………………………………………………………………………………………………………

---- γ線 

--------------- x線 

                      -------------- 紫外線

                                              --------------- 可見光

                                                                        -------------- 紅外線

                                                                                            --------------- 短波

                                                                                                                       ---------- 中波 

                                                                                                                                        -------長波

 

  ....................................................................................................................................................................

λ ν = c

c= 300,000,000 m/sec