The Naked Scientists

The Naked Scientists Forum

Author Topic: To molecules or atoms have colour?  (Read 3270 times)

Offline Raghavendra

  • Hero Member
  • *****
  • Posts: 835
  • Quantum
    • View Profile
    • Raghavendra
To molecules or atoms have colour?
« on: 18/03/2009 07:11:21 »
 
1) do molecules/atoms have color !! if not why visible light shows color of different wavelength, and frequency.

2) consider our universe was not black !!! what was the possibilites? would there be a atoms,

3) Do you agree that our universe is black so it has atoms ? what force exists behind?

Mod edit - yet another subject changed to be a question.  Please make sure you do this in future.
« Last Edit: 18/03/2009 12:38:36 by BenV »


 

Offline Chemistry4me

  • Neilep Level Member
  • ******
  • Posts: 7709
    • View Profile
Re: To molecules or atoms have colour?
« Reply #1 on: 18/03/2009 08:21:00 »
Are you studying chemistry or physics Raghavendra/Sachin?
 

Offline Raghavendra

  • Hero Member
  • *****
  • Posts: 835
  • Quantum
    • View Profile
    • Raghavendra
Re: To molecules or atoms have colour?
« Reply #2 on: 18/03/2009 08:24:19 »
Both even maths and Computer science, electronics etcc.......

   raghavendra

why?
 

Offline lancenti

  • Full Member
  • ***
  • Posts: 96
    • View Profile
Re: To molecules or atoms have colour?
« Reply #3 on: 18/03/2009 11:43:41 »
The phenomenon of colour is simply the receptors on our eyes sending electrical impulses to the brain when they are struck with a certain wavelength of light. The brain simply maps this out into images and colours.

As to whether a single atom has colour, that depends on whether it absorbs any particular wavelength of energy. Read: Absorption Spectrum and Emission Spectrum
 

Offline Bored chemist

  • Neilep Level Member
  • ******
  • Posts: 8676
  • Thanked: 42 times
    • View Profile
To molecules or atoms have colour?
« Reply #4 on: 18/03/2009 20:19:12 »
I don't understand why you think the universe is black.
http://www.pha.jhu.edu/~kgb/cosspec/
 

Offline Raghavendra

  • Hero Member
  • *****
  • Posts: 835
  • Quantum
    • View Profile
    • Raghavendra
To molecules or atoms have colour?
« Reply #5 on: 19/03/2009 12:23:35 »
ok...... thank uuuuuuuuuuuuuuuuuu
 

The Naked Scientists Forum

To molecules or atoms have colour?
« Reply #5 on: 19/03/2009 12:23:35 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums