0
The reason we call a blue filter a "blue filter" is that it looks blue. The reason
it looks blue is that blue light is the only kind of light that can go all the way
through it. Any other color of light gets absorbed in the dyes between the
layers of the filter, and never comes out the other side. If you shine red light
at one side of a blue filter, the other side of the filter looks dark, as if nothing
is shining through it. And if you look at a 'red' sweater through a blue filter, the
sweater looks black.
What else can I help you with?
Why might filtrate be blue?
Filtrate could appear blue if it contains certain colored compounds or substances, such as copper or methylene blue, that have passed through the filtration process. It could also be due to contamination or interference from other sources, such as a stained filter paper or glassware.
What colour are goblet cells?
Goblet cells do not have an exact color, by via mimcroscope, they appear purple, or dark blue.
Are plants green because they have chlorophyll?
they are green because, that is the colour they reflect, they soak in every other colour but green (or blue and yellow) and the release the green :)
Why does Venus appear blue?
Venus actually appears yellow, due to sulfuric acid and carbon dioxide clouds all over its surface. However, when a photo is taken with an ultraviolet filter Venus does appear blue. See related links for a picture of a blue Venus and a picture of Venus in real colour.
What is the colour of blue litmus paper in baking soda?
The colour is not changed.
What colour does white appear when seen through a blue filter?
blue
What colour will you see shone a red light through a blue filter?
When shining a red light through a blue filter, the light that passes through will appear black. This is because the blue filter only allows blue light to pass through, while blocking red light.
What is the colour of a blue car appear on yellow light?
black because blue light cannot pass through a yellow filter
What colour will a blue t-shirt appear with a green filter?
cyan light
What color would a blue object appear through a blue filter?
green
What colour filter if blue object to look black?
A yellow filter would absorb blue light, making a blue object appear black in a black-and-white photograph.
What colour would a red object look through a blue filter?
A red object would appear dark or black when viewed through a blue filter because blue filters absorb red light, preventing it from passing through. This would result in the red object appearing much darker since it is not reflecting or transmitting the blue light that the filter allows to pass.
What colour will a cyan book illuminated with a blue light viewed through a green filter appear to be?
A cyan colored surface will reflect any blue or green light that is incident. The green filter will remove all colors of light passing through it except green. The book is illuminated with only blue light. Draw your conclusion.
How would a blue shirt appear if a blue filter were placed in front of it?
The blue shirt would appear darker and more saturated when viewed through a blue filter. This is because the filter would allow blue light to pass through while blocking other colors, enhancing the blue color of the shirt.
What colour is red light if you look at it through a blue filter?
You can't see it because a blue filter only lets blue light in, and red is made up of just red light, no blue, so none passes through (or it gets reflected, can't remember which)
What does a blue object look like through a blue filter?
grey
What color would white light appear viewed through filter?
It depends on what kind of filter, e.g. a blue filter absorbs everything except blue light, so only blue light comes out, which is why the filter looks blue, and is referred to as a "blue filter".
