A yellow filter would absorb blue light, making a blue object appear black in a black-and-white photograph.
You could use a yellow filter to absorb blue light, making the blue object appear black since no blue light would reflect off of it.
Black
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.
grey
When red light passes through a blue filter, it appears dark or nearly black. This is because the blue filter only allows blue light to pass through and absorbs other colors, including red. Since red light cannot be transmitted through the blue filter, it effectively gets blocked.
You could use a yellow filter to absorb blue light, making the blue object appear black since no blue light would reflect off of it.
Black
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.
red filter
Black
Blue what ? ! ? Do you mean an object that appears blue in white light ? Such an object appears black in green light.
A red object looks black through a blue filter because the filter absorbs the red light that the object reflects, allowing little to no light to pass through. This results in the red object appearing dark or black when viewed through the blue filter.
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.
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
black because blue light cannot pass through a yellow filter
When you look at a blue object through a red filter, the object will appear darker and possibly black because the red filter blocks out most of the blue light. The red filter only allows red light to pass through, which results in absorbed blue light and altered color perception.
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.