physics question - light?

Question

a boy wearing a white t-shirt and has a yellow duck sitting on a blue boat printed on it. he goes inside a room with red lights. which color will his t-shirt, duck and the blue boat look.????//

Answer 1

Well the answer to this is based on which colours are absorbed and which are reflected.

The white t-shirt reflects all the colours in the spectrum hence if there is red light then it will appear red.

The yellow duck is yellow because it absorbs all the colours in the spectrum except yellow. Hence it would absorb the red light and appear black. (This is only the case if the red light is pure red and there is not other light source, if the light is a mixture of red and yellow then it might still appear yellow.

The Blue boat is blue because it absorbs all the other colours except the blue. So it would absorb the red light and appear black.

Answer 2

The APPEARANCE of an object to human eyes depends a lot on the colors impinging on the eyes. Although we define yellow as a primary color, it is NOT a color that the eye responds to directly. The normal human eye has 3 types of cone cell color receptors -- one that is receptive to BLUE light (peak at about 450 nm wavelength), one that is receptive to GREEN light (peak at about 540 nm) and one that is receptive to RED light (peak at about 580 nm). Yellow (at 570 nm) is perceived when the the RED and GREEN receptors are excited about equally. This is why an RGB display can work.

So, the YELLOW duck might NOT absorb all wavelengths but YELLOW. It MIGHT absorb light such that TWO wavelengths are reflected, both red and green. Or 3 wavelengths: red, green and yellow. Without having a spectroscopic analysis of the materials, it would be impossible to tell what the result would be upon subjecting it to a pure colored light (which, by the way, is only possible with lasers).

Answer 3

The white shirt will be red because white is a netural color; the yellow duck sitting on a blue boat will be orange and the blue boat will be purple. Look to be honest I don't know...I tried..Hey! The guy above me and below me knows what their talking about.

Answer 4

assuming it is pure red light and not just tinted red light (which the majority of "red" light is) the white would look red, the blue would look dark red and the yellow would look medium red between the light and dark reds. if youre in filtered red light (like those from gels or painted bulbs) the white will look red, the blue will look purple and the yellow will look orange. good question!

Answer 5

Assuming all the colours are PRIMARY colours, the shirt will look red and the blue and yellow will look black.
The white reflects all colours but the blue and yellow, if pure, cannot reflect any red, so they will appear black.