# Short-Questions

Fast solutions for complex problems

22

## What happens if you shine a green light on a red object?

When white light falls on an object the body absorbs all colors of light and reflects some colors of light which we see the object to be. For eg. A red ball reflects red color and absorbs the rest colors.So,if I throw green light on a red ball the ball will absorb that green light.

## What Colour does red appear in green light?

yellow light
Here’s how it happens in the eye — and how to teach it. Color perception is strange. For example: red light looks red and green light looks green, but when red and green light come into your eye from the same source — well, then it looks like yellow light.

Does green light cancel out red?

While most colors induce a mixture of effects in both sets of neurons, which our brains can decode to identify the component parts, red light exactly cancels the effect of green light (and yellow exactly cancels blue), so we can never perceive those colors coming from the same place.

### What color does red and green make?

yellow
When the red and green lights mix, the result is yellow.

### Why does green look black in red light?

The observer sees the object as the colour green. In diagram 2, the same object is seen under red light. Because the green surface absorbs all colours other than green, no light at all is reflected from the object. No light enters the observers eye, so the object appears a black colour.

Why does blue absorb red light?

The colour of visible light depends on its wavelength. These wavelengths range from 700 nm at the red end of the spectrum to 400 nm at the violet end. The blue shorts reflect blue and absorb green, yellow and red. The colour we see is a result of the wavelengths that are reflected back to our eyes.

#### What colors show up in red light?

Any color which reflects red will appear “white”, i.e. white, red, orange, yellow. Any color which absorbs red will appear “black”, i.e. green, blue, black. Colors that reflect some red appear gray, i.e. purples and some browns.

#### Why is green light brighter than red?

To the human eye, a green laser will appear four times as bright as a red laser at the same power output based on the human eyes’ light sensitivity. PLS red laser levels emit red light at approximately 635nm, where our light sensitivity is a significantly less. …

What color of light is formed if you mix red and green light?

Red and green light make yellow. And when all three primary colors of light are combined, we see white light.

## What 2 colors make red?

The basic color theory which is the well know one states that red is one of the primary colors and by adding other colors you can alter the shade. When considering the CMY model you can create red simply by mixing magenta and yellow.

## What color is Cyn?

Cyan (/ˈsaɪ. ən, ˈsaɪˌæn/) is the color between green and blue on the visible spectrum of light. It is evoked by light with a predominant wavelength between 490 and 520 nm, between the wavelengths of green and blue….

Cyan
water
Color coordinates
Hex triplet #00FFFF
HSV (h, s, v) (180°, 100%, 100%)

Why is red light used in traffic lights as a signal to stop?

As we know red light is used to stop vehicles. The reason behind is red light is having longer wavelength. Therefore the red light can travel the longest distance through any fine particle. Hence in traffic signals red color light is used to stop vehicles because it is having the highest wavelength.

### How is the color of a shirt related to its reflection?

The color a shirt appears is related to the wavelengths (colors) of light which it reflects. A shirt can appear cyan when normal white light shines on it because it reflects blue and green light and absorbs the red. (See the Dig that Diagram and Physics Rules section above.)

### Why does a white shirt appear red in a red light?

A shirt can appear red when normal white light shines on it because it reflects red light and absorbs blue and green light. (See the Dig that Diagram and Physics Rules section above.) But if the light which shines upon it is changed, there may be no red light to reflect and its appearance could change.

Why does a white shirt look like a cyan?

A shirt can appear cyan when normal white light shines on it because it reflects blue and green light and absorbs the red. (See the Dig that Diagram and Physics Rules section above.)

#### What happens if you shine a green light on a red ball?

\$\\begingroup\$ If the ball was perfectly red, and if the only light falling on it was perfectly green, then the ball would indeed appear black. But, if you see a red ball, that means there already is some red light reflecting off of it from somewhere. Shining a green light on the ball won’t make the red light go away.