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Q: Why does a car have white or yellow lights in front but red lights at the back?
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If you shine a yellow light on a white surface why does the surface look yellow instead of white?

The white surface reflects the yellow light back to you. White reflects all colours of light, so when it only has yellow light to reflect, it reflects all of the yellow light.


Does the clip of the phiten go in the front or the back?

front i say


What is the concept of front and back tension in cold rolling?

front and back tension plays significance role in rolling. front tension increases the forward slip and back tension will do reverse. with increase in front tension roll force required to reduce the thickness will decrease.


How do sandworms move?

Squirming from back to front


What color does a green and orange object reflect?

An object appears a certain color to you because it reflects that color of light and absorbs other colors of light. For example, a white object appears white because it reflects all colors of visible light (red, orange, yellow, green, blue, indigo, violet). A black object appears black because it absorbs all of these colors--and as a result, none of those colors are reflected back to your eyes. Under white light, the object appears yellow-green because it reflects both yellow and green light and absorbs all other colors. (Remember, white light has all colors of visible light in it). If only green light is present, there's only green light for it to reflect--so it will appear green. If you shined yellow light on it only, it would be yellow. If you shined yellow and green light, it would appear yellow-green again. It you shined red and blue light on it, it would appear black, because it absorbs both of those colors.

Related questions

How would you make sure you werre visible if you were riding your bicycle at night?

I would use appropriate reflectors, red facing back, yellow to the sides, white to the front. Lights, red to the back and white to the front. And I'd top it all with a hi-viz, reflective vest.


What lights should you use when you are dirving in a fog?

dipped headlights (and foglights (a red one at the back and two low slung white lights at the front) if you have them).


What color bulb is best for fog lights?

Yellow lights are recommended. white lights reflect off the fog and back to you preventing you to see through the fog. The lights should also be as close to the ground as possible.


How many types of car lights can be found?

On an average car, there are high and low beam lights for night driving, clearance lights on the front and back, front and rear turn signals, and back-up lights used when backing up.


Is it legal in Arizona to operate a motorcycle with LED accent lights?

Not the cool ones. Colors are limited. White/Amber visible from the front. Red from the back.


How many red an white lights are on the back of an 18 wheeler?

There must be at least seven red lights on the back of a trailer.


The yellow-snouted gecko has white spots on its body?

the yellow snouted gecko does not have white spots on the back of its body


If your back lights work and your front lights don't what could be the problem pug 106 xsi?

You might check to see if your front headlight bulbs are out.


Why Rosa parks get kick off the yellow bus and why the white people don't like black people?

because rosa refeused to do so when she was told to sit in the back of the bus because the white sat in the front and theblack sat in the back,


If you shine a yellow light on a white surface why does the surface look yellow instead of white?

The white surface reflects the yellow light back to you. White reflects all colours of light, so when it only has yellow light to reflect, it reflects all of the yellow light.


Why are car number plates white at the front and yellow at the back in the uk.?

Reflective number plates were introduced to the UK in the late 60's early 70's The reasoning behind the white/yellow colouring is so that you could tell which way a vehicle was facing, in poorly lit areas. White, it was coming towards you, yellow it was facing away from you.


Where to position trailer lights on my trailer?

Two lights from the front two at the back. i wish i could change that but there you go