Physics · Oct / Nov 2022 · Paper 62 · Question 2
0625
As printed in the paper
The question as text
A student investigates the position of the image in a plane mirror. Fig. 2.1 shows the ray-trace sheet. M R eye ray-trace sheet P3 P4 Fig. 2.1
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
2(a)[1]
normal correct and extending above and below MR
2(b)[1]
line at 30° to the normal (± 2°) and end of line labelled A
2(c)(i)[1]
P1 P2 distance at least 5(.0) cm and no larger than 15(.0) cm inclusive
2(c)(ii)[1]
greater accuracy / easier to line up pins
2(d)(i)[1]
angle β = 58 ± 2°
2(d)(ii)[1]
all headings °
2(e)[1]
correct values of (α + β ) from candidate’s results
2(f)[1]
values are identical (within the limits of experimental accuracy) / almost equal / really close / not too far apart
2(g)[2]
at least 1 value < 30(°) and 1 value > 45(°)
all recorded values less than 90°
2(h)[1]
difficulty in lining up pins / pins too thick / lines too thick / thickness of mirror (glass) / precision of protractor
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