question_answer

                In certain region on the screen, blue and red  colours fall at the same time. This region will show

A)  yellow                                 

B)  magenta

C)  indigo                                  

D)  brown  

Correct Answer: B

Solution :

                 According to Maxwells colour triangle, with the three apexes representing three primary coloured lights, blue-violet, orange-red and green.                 From this colour triangle it can be seen that superposition of blue and red colour will form magenta.