7.10.3b The Addition and Subtraction of Coloured Lights (Structured Questions)


Question 1:
Diagram shows an addition of three coloured lights on a white screen.



(a) By using the information in Table, name P, Q and R in Diagram. [3 marks]


(b) Based on Diagram, name one primary colour. [1 mark]

(c) What colours can be seen when red flower and green leaf are placed under light P?
(i) Red flower. [1 mark]
(ii) Green leaf. [1 mark]


Answer:
(a)
P: Green
Q: Cyan
R: Magenta

(b) Red or blue

(c)(i) Black

(c)(ii) Black


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