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Semen Stains on clothes can be identified by Spectrometry UV light Infrared light Magnifying lens Neon lights

Semen Stains on clothes can be identified by
  1. Spectrometry
  2. UV light
  3. Infrared light
  4. Magnifying lens
  5. Neon lights

Grade:12th pass

3 Answers

sumanth
38 Points
8 years ago
Ultraviolet (UV) light is an electromagnetic radiation with a wavelength from 400 nm (750 THz) to 10 nm (30 PHz), shorter than that of visible light but longer than X-rays
then the stains are visible on the clothes
 
Yogiraj
45 Points
8 years ago
But according to the spectrum, semen has a slightly reddish colour and it is more prominent than blue colour..... but still looks white..... So it should be detected by infra-red lights!! But why UV light?
Anjali Ahuja
askIITians Faculty 234 Points
8 years ago
Hello Student,
Semen consists of flavin & choline conjugated proteins in it & because of these compound semen is flouroscent . It can easily be identified by blue light & ultravoilet light or under specialised light.

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