Go Back   Physics Help Forum > High School and Pre-University Physics Help > Light and Optics

Light and Optics Light and Optics Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Apr 19th 2009, 04:19 AM   #1
Junior Member
 
Join Date: Apr 2009
Posts: 3
what color does a green cloth appear in yellow light

basically yellow light is either its own wavelength or a mixture of green + red, so here is the question;
what color does a green cloth appear in yellow light

i know it could only be black or green but which one
jsmith613 is offline   Reply With Quote
Old Apr 19th 2009, 05:58 AM   #2
Physics Team
 
Join Date: Feb 2009
Posts: 1,425
Since white light consists of all the colours, if a cloth apeears green it implies that it reflects the green wavelenth and absorbs the others.
So yellow light if it consists of only yellow will be absorbed as when it was illumined with white light and so the cloth will appear black. If it is a mixture of green and red, red will be absorbed as when it was illumined with white light and green reflected, so the cloth will appear green.
physicsquest is offline   Reply With Quote
Reply

  Physics Help Forum > High School and Pre-University Physics Help > Light and Optics

Tags
cloth, color, green, light, yellow



Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
local Green's function nnnnn Atomic and Solid State Physics 1 Oct 4th 2009 12:51 AM
Reflected light and color lightwaved Light and Optics 5 Jun 4th 2009 11:45 PM
In summer which colour cloth is appropriate? ohm Light and Optics 1 Apr 22nd 2009 11:50 PM
Green Planet (My project for clean energy by gravitation) whiteetea General Physics 6 Oct 26th 2008 01:31 AM


Facebook Twitter Google+ RSS Feed