answersLogoWhite

0


Best Answer

Red and blue are primary colours therefore they do not contain any other colour. When a blue light is shone onto a red object, all the blue light is absorbed by the red object, and as no red light is being shone for the red object to reflect, no light will be reflected from it and it will appear to be black.

It is important to remember that physical colours will only reflect it's light colour equivalent. All other colours are absorbed. So red will reflect red, green will reflect green, and red will absorb green and so on.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

4mo ago

Red objects appear black in blue light because red and blue are complementary colors. When blue light shines on a red object, the object absorbs the blue light and reflects very little light, making it appear black to our eyes.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why do red object's look black in blue light?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What colour will a green object look like in blue light?

A green object will appear dark or black under blue light because it does not reflect blue light well. Green objects absorb blue light, resulting in little to no reflection of this color.


Why do Blue objects look blue because?

Blue objects look blue because they absorb most of the colors in white light, but reflect blue light. This blue light is then what is detected by our eyes, making the object appear blue to us.


Why does a blue object look black in red light?

Blue objects absorb most of the red light that hits them, reflecting very little red light back to our eyes. This causes the object to appear black in red light because red light is the only color that can reveal the object's true color.


Why does a red book look black in blue light?

because the light is so bright it makes it look black


What colour does blue look under a red light?

Under a red light, blue would appear dark or black because red light is absorbed by objects that are not red. Since blue is not a color in the red light spectrum, it cannot reflect or be seen under red light.


How does a black and green sports kit look under a blue light?

Black and blue, respectively


How do the blue bag look if it did not reflect light?

black


What colour will a blue object look in yellow light?

Black


What would a red object look like shone onto a blue light?

A red object shone onto a blue light will appear dark or black as red objects absorb blue light and do not reflect it. The blue light does not contain any red wavelengths for the object to reflect, hence the absence of color.


What color will a blue object look like in green light?

it will look black but I am not sure


What colour will a yellow object look like in blue light?

Black


What color would apple look under a blue light?

Black