Question

a blue object on a white background when seen though a blue filter will appear?
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Answer 1

Explanation:

So when blue light is allowed through a blue filter onto a blue object, the object will still reflect blue and therefore appear blue

Answer 2

Explanation:

When white light shines on a red object, all of the colors that form the white light are absorbed except red, which is reflected. ... So when blue light is allowed through a blue filter onto a blue object, the object will still reflect blue and therefore appear blue.