TÁC HẠI CỦA TẦNG OZON BỊ THỦNG.

Dùng tia tử ngoại để phát hiện tiền giả

TÁC HẠI CỦA TẦNG OZON BỊ THỦNG.

*Gièng nhau:

 Cïng cã b¶n chÊt lµ sãng ®iƯn tõ

 Cã c¸c tÝnh chÊt chung cđa sãng ®iƯn tõ

 Kh«ng nh×n thÊy ® ỵc

*Kh¸c nhau:

+ Tia Hång ngo¹i: λ = 760 nm → 10 - 3 m ( vµi milimÐt)

+ Tia Tư ngo¹i: λ = 360 nm → 10 - 9 m (vµi

nan«mÐt)

(Ánh s¸ng nh×n thÊy: λ = 760 nm →380 nm )

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