Phosphorescence Current Affairs, GK & News

Bi-luminescent Security Ink

The CSIR and National Physical Laboratory have developed a bi-luminescent security ink and dispatched to the Bank Note Press in Dewas. About the Ink The bi-luminescent security ink glows in 2 colors- red and green when exposed to radiation of different wavelengths. When illuminated by a light source of 254nm, it glows red and when ..

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