Science Help EEP!?

Question

A black object, a red object, and a green object are viewed under coloured lights. Complete this table bloew t oshow what colour each object would appear when subjected to the coloured light indiciated.

OBJECT X | OBJECT Y | OBJECT Z
Colour in white light: black red green
Colour in green light: ? ? ?
Colour in red light: ? ? ?
Colour in blue light: ? ? ?

Any idea how to fill those in? thanks.

Answer 1

The colour corresponds to what the object can't absorb.

Black absorbs all so that object will look black under all conditions.

Red blue and green are primary colors (see http://en.wikipedia.org/wiki/RGB_color_model )
Therefore:

Red asborbs all but red so the object that was red under white light will appear red in red and black in all the others

Similarly for the blue (the object seen as blue under white light will be blue under blue light and black under red and green, etc) and the green.

It would be more complicated if you had non-primary colours like orange, pink, violet,yellow (don't mix the primary pigments of art with the primary colors;this mistake is explained in the link above)

Answer 2

in green light only the green object will appear green and rest black.in red light only red light will appear red and rest black and in blue light only blue will apear blue and rest black.

Answer 3

1.green-black, black, green
2.red- black, red,black
3blue- black, black,black..

all light and colour you specified here are primary colours, and so, as they are not the composition of other colours, they will appear black in primary coloured light, and appear in real colours in their own composite light or the same coloured light.

Answer 4

green green green
red red red
blue blue blue,

J/K good for you to check out an optics book.

Answer 5

sorry cant help u