EM wave係咩freq.有幾多energy啊 energy同wavelength又有咩關係啊?
microwave係幾多Hz啊? wifi又係幾多Hz啊? 佢地wavelength係幾多啊?
講真x-ray /gamma way /cosmic wave 講緊10nm以下既EM wave去到用EHz去計算?
個爐就多數2.45GHz 下面講既wifi就2.4-5GHz Hertz差成10^9倍...
microwave oven有ratidation?唔好玩啦伍寶佢點ionizing先?而且係microwave oven有金屬網做absorbent架嘛...
antenna有冇radiation取決於佢係咩type(你話隻antenna變成horn咁向下fing D EM wave我都冇野講既)
不過wifi有幾多mSv呢?而且佢點樣可以有ionization 點樣電離粒電子變成離子?要provide幾多能量先至令物質既電子飛出黎?
而咩野freq.又決定左佢既lamda 係幾多lamda之內會有radiation啊?