Question

The word PHYSICS is written in red ink and the work CHEMISTRY is written in blue ink on a white piece of paper. They are viewed in red light. Which word will you be able to read? Why?

Answer 1

On a piece of white paper, PHYSICS is written in red and CHEMISTRY is written in blue. When this paper is viewed in red light, the entire paper will be red. Hence the red paper and red PHYSICS letters will be of same colour and we would not be able to recognize between the two. Thus, we will be able to read the word CHEMISTRY.