07d Addition and Subtraction of Coloured Lights
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SPM Form 4 Science Chapter 7
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Question 1 of 12
1. Question
1 pointsWhich of the following addition of coloured light are collect?
I. Red + blue = magenta
II. Blue + green = yellow
III. Red + green = yellowCorrect
Well done! You are correct.
Incorrect
The correct answer is “I and III only”.
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Question 2 of 12
2. Question
1 pointsDiagram shows the overlapping of coloured lights on a white screen.
What colour is observed at the region labeled P?
Correct
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Incorrect
The correct answer is “White”.
-
Question 3 of 12
3. Question
1 pointsDiagram shows the production of colours X, Y and Z from the addition of red, blue and green lights.
What are X, Y and Z?
X
Y
Z
A
Magenta
Cyan
Yellow
B
Magenta
Yellow
Cyan
C
Yellow
Magenta
Cyan
D
Yellow
Cyan
Magenta
Correct
Well done! You are correct.
Incorrect
The correct answer is “A”.
-
Question 4 of 12
4. Question
1 pointsDiagram shows a ray of white light passing through two coloured filters.
What coloured light is formed on the white screen?
Correct
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Incorrect
The correct answer is “Red”.
-
Question 5 of 12
5. Question
1 pointsDiagram shows a beam of white light passing through a magenta filter and a cyan filter.
What coloured light is formed on the white screen?
Correct
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Incorrect
The correct answer is “Blue”.
-
Question 6 of 12
6. Question
1 pointsDiagram shows the overlapping of primary coloured lights on a white screen.
What colour is observed at the region labeled Y?
Correct
Well done! You are correct.
Incorrect
The correct answer is “Magenta”.
-
Question 7 of 12
7. Question
1 pointsDiagram shows the overlapping of two different coloured lights on a white screen.
What colour is W?
Correct
Well done! You are correct.
Incorrect
The correct answer is “Yellow”.
-
Question 8 of 12
8. Question
1 pointsDiagram shows the addition of coloured lights.
What colour is observed at the region labeled P?
Correct
Well done! You are correct.
Incorrect
The correct answer is “White”.
-
Question 9 of 12
9. Question
1 pointsThe diagrams show X, Y and Z are the regions due to overlapping of two different coloured lights on a white screen.
What are X, Y and Z?
X
Y
Z
A.
Magenta
Cyan
Yellow
B.
Magenta
Green
Cyan
C.
White
White
Cyan
D.
White
Cyan
Yellow
Correct
Well done! You are correct.
Incorrect
The correct answer is “C”.
-
Question 10 of 12
10. Question
1 pointsDiagram shows a ray of white light passing through two coloured filters.
What coloured light is formed on the white screen?
Correct
Well done! You are correct.
Incorrect
The correct answer is “Green”.
-
Question 11 of 12
11. Question
1 pointsDiagram shows a beam of white light passing through a yellow filter and a colour filter P.
Red light is formed on the screen.
What colour is filter P?Correct
Well done! You are correct.
Incorrect
The correct answer is “Magenta”.
-
Question 12 of 12
12. Question
1 pointsDiagram shows a beam of white light passing through a colour filter and a magenta filter.
Blue light is formed on the screen.
What colour is filter R?
Correct
Well done! You are correct.
Incorrect
The correct answer is “Cyan”.