Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

About light

  1. Apr 14, 2010 #1
    which colour is brightest (red monochromatic light, green monochromatic light and blue monochromatic light )? and which light will give highest radiant flux? why?
    Thank you
     
  2. jcsd
  3. Apr 14, 2010 #2

    jtbell

    User Avatar

    Staff: Mentor

    This is like asking, "which sound is loudest: bass, treble, or midrange?"

    In other words, you need more information! :confused:
     
  4. Apr 14, 2010 #3
    If you know the wave length of each light you can try to find its frequency...
    As jtbell said: it is somewhat difficult to say with less information that you gave.
    But brightness is something related to convergence angle, bandwidth, etc..i.e. it mainly depends on collimation.
     
  5. Apr 14, 2010 #4
    Wavelength of Maximum Human (Optical) Sensitivity: "The eye is most sensitive to green light (555 nm) because green stimulates two of the three kinds of cones, L and M, almost equally."

    So green light would be perceived as "brighter" by the human visual system.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: About light
  1. ? about light (Replies: 4)

  2. About light (Replies: 6)

  3. About light (Replies: 1)

Loading...