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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.
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Why does the colour of Neptune appear to be blue-green?
Because it is two cold
What colour are goblet cells?
Goblet cells do not have an exact color, by via mimcroscope, they appear purple, or dark blue.
What colour does argon go when an electrical current runs through it?
When an electric current is passed through Argon, it becomes blue
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 colour is Benedict's solution?
Blue
What colour does white appear when seen through a blue filter?
blue
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 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'."
What colour will you see shone a red light through a blue filter?
you stupid colour blind its purple man
What color would a blue object appear through a green filter?
green
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.
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 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".
Why blue colour appear blue?
Because it is blue
What colour does a blue disc appear under blue light?
blue
