(a) Application of UV radiation:
- By the human skin to synthesize or manufacture vitamin D.
- In bacteriology to kill harmful organisms.
- In the manufacture of washing powder and paints that fluoresce.
- To detect forged documents such as cheques and fake currency notes in banks.
- In burglar alarms.
- In automatic door openers.
(b)
- Photographic plates/films.
- Photocells.
- Light Dependant Resistors – LDR
Kavungya answered the question on June 3, 2019 at 06:23
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