Step-by-step explanation:
If the color of light is represented in the color of an object, it will appear the color of the light. If not, It will appear Black because all the light is absorbed and nothing is reflected.
1. Blue is a primary color. So, under the green light, blue paper will appear black.
2. White contains all colors. So, it will appear green only under green spotlight.
3. Black does not contain any primary color. So, under green spotlight Black paper will appear Black only.
4. Cyan is the secondary color and contains green. So, under the green spot light it will appear green.
5. Magenta is the secondary color without green. So, under green spotlight, magenta paper will appear black.
6. Yellow is the secondary color and contains green. So, under the green spot light it will appear green.
7. Red is a primary color. So, under the green light, Red paper will appear black.
8. Green is a primary color. So, under the green light, Green paper will appear green.