Prepare to stop.
because a yellow pencil can only reflect yellow light and that yellow light is what you see from a yellow pencil.
yellow
Yes but they say that light blue is harder to see than yellow
The reason the filter appears yellow and is called a "yellow filter" is that only yellow light survives the trip through the filter and lives to emerge from the other side. If you don't hit it with yellow light, nothing comes out. If the light hitting the filter is pure blue and nothing else, you'll see no light come out, i.e. black.
Even though youv'e given it the name "Yellow", the object is only yellow when there's some yellow light shining on it. You see, it absorbs all other colors of light, and only yellow light bounces off of it. That's why the light from that object that enters your eye is yellow light, and that's why you describe the object as looking "yellow". If there's no yellow light shining on the object, it looks black.
(it reflects on the suns light.) just like the sun, we see it in a yellow or orange color but the reason why the sun is yellow is because it is the brightest light ever.
yellow
A flashing yellow light means you should drive with caution when approaching and moving through the intersection.
You will see Yellow. Yellow is the frequency that the surface reflects.
It does reflect light, as anything does that you can see (a yellow tennis ball reflects yellow light and absorbs the other colors). However, it will not show you your reflection.
Well the light bounces off the item back to your eyes. A red substance reflects back only red light yellow only yellow and so on.
It means you should slow down and be prepared to stop if necessary. "Slow down and cross the intersection carefully."