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Q: What colour filter if blue object to look black?
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Related questions

What colour will a blue object look in yellow light?

Black


What filter would you use to make a blue object look black?

red filter


What colour will a yellow object look like in blue light?

Black


What colour will a green object look like in blue light?

black


What colour will blue be in a green light?

Blue what ? ! ? Do you mean an object that appears blue in white light ? Such an object appears black in green light.


What colour will a green object be if only blue light was shone on it?

Black, because the blue light would be absorbed into the object's pigment and as there is no green light to reflect, the object would appear black.


What colour will a Green object appear if only Blue light is shone on it?

Black I think


Does a pure red paper appear black in pure blue light?

it should do objects absorb all light except light of the colour of the object if there is no light of that colour the object appears black


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

black because blue light cannot pass through a yellow filter


Blue and black are secondary colors?

Blue is a primary colour. Black is the absence of colour.


What colour would a red look through blue filter?

Black because if a red light reflects off the blue surface there is no reflection, so the surface looks black.


What colour is the colour elderberry?

Black or Blue-ish Black