Questions on colour

Q7. A white box of photographic paper has a warning written on it, in large red letters:

(a) The box of paper is taken into a photographic darkroom where the only light is from a red lamp.

(i) What colour does the white box appear?
(ii) What colour does the red writing appear?

2 marks

(b) The red lamp is now switched off and a green lamp is switched on.

(i) What colour does the red writing appear in green light?
(ii) Explain why the writing appears to be this colour.

2 marks

Maximum 4 marks