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If red light passed through the filter, then it would not be a blue filter. When a broad

range of colors encounters the blue filter, by far the greatest share of the light that

comes out of the other side is blue light, with very small amounts of other colors.

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Q: Does blue and red light pass through a blue filter?
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What color will the shirt appear to be but white shirt is viewed through a filter that allows only blue light to pass through the filter?

Since the filter allows only blue light to pass through, anything you see through the filter appears either blue or black. Blue if there's any blue light coming from it, or black if there isn't any.


What colour comes through when a red light passes through a blue filter?

Nothing comes through. A red light emits no blue light, and a blue filter allows only blue light to pass ... that's why when you look at it, you say to yourself "Hey! That filter looks blue. I'll call it a 'blue filter'."


If you have a blue light showing through a cyan filter what color will it appear?

Shining a blue light through a cyan filter will result in a blue light shining through. As cyan is a combination of blue and green light, it will allow blue and green light to pass through it. Red light will be absorbed by the filter. This is proven by shining a violet or magenta light through the filter and it allowing blue light will shine through. It is shown as well by shining a yellow light through the filter which will result in green light shining through as both violet and yellow are a combination of red the other two primary colours, blue and green.


What color would a blue shirt be if seen through a green filter?

A filter removes certain colors of light which pass through it. The primary colors of light are green red blue. Since the shirt absorbs all but blue light and the filter removes all but green it will appear black.


What would happen when a blue light shines on a red filter?

An emitter of blue light shining on/through a red filter.The red filter appears red because it block all light except red. So trying to shine blue through it should attenuate the blue heavily. Only red can pass through the red filter easily.

Related questions

What color will the shirt appear to be but white shirt is viewed through a filter that allows only blue light to pass through the filter?

Since the filter allows only blue light to pass through, anything you see through the filter appears either blue or black. Blue if there's any blue light coming from it, or black if there isn't any.


What does a blue filter do to blue light?

Blue light will simply pass through a blue filter, as the filter will only absorb colours which are not blue (red and green).


What colour comes through when a red light passes through a blue filter?

Nothing comes through. A red light emits no blue light, and a blue filter allows only blue light to pass ... that's why when you look at it, you say to yourself "Hey! That filter looks blue. I'll call it a 'blue filter'."


If you have a blue light showing through a cyan filter what color will it appear?

Shining a blue light through a cyan filter will result in a blue light shining through. As cyan is a combination of blue and green light, it will allow blue and green light to pass through it. Red light will be absorbed by the filter. This is proven by shining a violet or magenta light through the filter and it allowing blue light will shine through. It is shown as well by shining a yellow light through the filter which will result in green light shining through as both violet and yellow are a combination of red the other two primary colours, blue and green.


What is the colour of a blue car appear on yellow light?

black because blue light cannot pass through a yellow filter


What color would a blue shirt be if seen through a green filter?

A filter removes certain colors of light which pass through it. The primary colors of light are green red blue. Since the shirt absorbs all but blue light and the filter removes all but green it will appear black.


What would happen when a blue light shines on a red filter?

An emitter of blue light shining on/through a red filter.The red filter appears red because it block all light except red. So trying to shine blue through it should attenuate the blue heavily. Only red can pass through the red filter easily.


What covers the light of a microscope to shorten the wavelength?

A blue filter only allows shorter wavelengths of light to pass. So, covering the light source of a light microscope with a blue filter shortens the wavelength of light passing through the objective.


What happens to green light if it passes through a cyan filter?

A cyan filter will pass green light. In fact, you could pass the light through a cyan filter AND a yellow filter and it would be unchanged.


If white light were shone through a green filter which light would pass through the filter?

Mostly green.


What color of light best passes through blue glass?

blue light passes through best. my knowledge of light is limited (while googling iti'm simultaeniously answering this question) however, i do know that in THEORYONLY blue light should pass through a blue filter. only red light will pass througha red filter. only teal light will pass through a teal filter, etc, etc.===========================And here is a revelation that may blow your mind ... you may want to sit down:How do you suppose it comes to be known as "blue glass", eh ?The glass looks blue because when light of all colors pours into one side of it, onlythe blue light comes out the other side. Any other color is absorbed in the glass,and is never heard from again. The result is ... presto ! ... the glass looks blue,because that's the only light that's left to travel from the glass to your eye.


Why ll a light fitted with both blue and green filters appear black?

The blue filter allows only blue light to pass and blocks red and green light. The green filter allows only green light to pass and blocks red and blue light. Therefore, the two filters together block all light.