Question

If you were to look at the rainbow with red glasses, which two of the colours v (=1)-v-i-b-g-y-o-r(=7) would you expect to turn fully black

Answer 1

If you were to look at the rainbow with red glasses, which two of the colours v (=1)-v-i-b-g-y-o-r(=7) would you expect to turn fully black ?

Blue and green would appear to turn fully black since red glasses will only allow red light wavelengths to transmit through it and on the other hand green and blue light is completely reflected by our our eyes hence appears to be black.