Question

I am confused as to how light would work in the following question:

Some very efficient streetlights contain sodium vapour under high pressure. They produce light that is mainly yellow with some red. Should a community having these lights buy dark blue police cars? Why or why not?

I'm guessing that the lights would make the cars look yellow???

Answer 1

If the police cars looked yellow, that means they are reflecting yellow light. Does blue reflect blue? What happens to yellow light on a blue surface. Why is grass green?


I will be happy to critique your thinking.

As a side note, yellow green is becoming a very popular color for fire engines. This is because....

Answer 2

So the cars will reflect blue light, but since no blue light is being emitted, they won't look blue? Since yellow light is a combination of red and green light, no blue is involved. One will not be able to see the police cars???

Thank you for your help!! :)!

Answer 3

excellent reasoning.

Answer 4

Thank you for your help! :)