When white light is incident on a yellow pigment,which color of light is not reflected?

When blue and yellow pigments are mixed and white light is incident on the mixture,which color of light is reflected?

Which color of light is scattered the most due to the atmosphere?

The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light

At noon,the sun appears white because:

Which phenomenon is responsible for the blue color of the clear sky?