Question

Which color of light gets through red glass?
1) red
2) cyan
3) none of these

Answer 1

Red light is the color that can pass through red glass, as the glass filters out all other colors.

Step-by-step explanation:

The question posed is related to the properties of light and how it is filtered through colored materials, specifically a piece of red glass. When white light (which contains all the colors of the spectrum) passes through a red glass filter, the glass absorbs all colors except for the color that matches the filter itself. In this case, red light is the color that will pass through the red glass, meaning the correct answer is (1) red.

Red glass filters out all colors of light except red. So, when white light passes through red glass, only red light is transmitted while all other colors are absorbed. Red light is the color that can pass through red glass, as the glass filters out all other colors.