Question

Identify the colour the object will appear when blue light shone on a red object.

Answer 1

1. The colour of the object will appear black when blue light is shone on a red object.
2. Because the blue would be absorbed and there would be no red light to be reflected.
3. The object will appear in a colour which is reflected from the object.
4. Hence, the colour of the object will appear black when blue light is shone on a red object.