Princeton's WordNet(1.00 / 1 vote)Rate this definition: beneficial, good(adj) promoting or enhancing well-being. an arms limitation agreement beneficial to all countries; the beneficial effects of a temperate climate; the experience was good for her.
The near infrared absorption spectrum of liquid water at 20Â°C has been reinvestigated using a PbS cell detector system. The total spectral range investigated was from 0.70 to 2.50Î¼. A curve is included which shows five prominent absorption bands at 0.76, 0.97, 1.19, 1.45, and 1.94Î¼; and a table gives experimental results of water absorption at 20Â°C.
Just beyond violet lies ultra-violet (UV), which is perceivable by some birds and insects, and is typically associated with sunburn-causing light. At the other end of the spectrum, infrared (IR) lies just beyond red, and is ordinarily associated with night vision and thermal imaging. Digital cameras are capable of recording the full spectrum from 300 to 1200 nm, but doing so would not produce realistic images.