Which color is produced by mixing blue and red?

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

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

At noon,the sun appears white because:

Reddish appearance of the sun at sunrise or sunset is significantly due to

What color does a red rose appear when green light is incident upon it?