Questions on Light
Q6. The diagram below shows a light bulb X, a piece of card and a white screen. Two light rays have been drawn from the bulb to the screen. Five points, A, B, C, D and E, have been labelled on the screen.
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(a) Give the letter of one point which is in shadow.
C or D 
1 mark
(b) Bulb Y is added. The diagram below shows two light rays from each bulb.
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(i) Which point on the screen will be in the darkest shadow? Give the letter.
C 
1 mark
(ii) Give the letter of one point on the screen which will be lit up by both bulbs.
A or E 
1 mark
(iii) Which point on the screen will be lit up by bulb X only? Give the letter.
B 
1 mark
Maximum 4 marks