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AQA A-LEVEL PHYSICS PAPER 3 SECTION A JUNE 2023 QP
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AQA A-LEVEL PHYSICS PAPER 3 SECTION A JUNE 2023 QP
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AQA A-LEVEL PHYSICS PAPER 3
SECTION A JUNE 2023 QP
A-level PHYSICS For Examiner’s Use
Paper 3
Question Mark
Section A
1
2
3
TOTAL
Thursday 15 June 2023 Morning Time allowed: The total time for
both sections of this paper is 2
Materials
For this paper you must have: hours. You are advised to spend
• a pencil and a ruler approximately 70
• a scientific calculator
• a Data and Formulae Booklet
minutes on this section.
• a protractor.
Instructions
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page.
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside the box around each
page or on blank pages.
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want to be marked.
• Show all your working.
, 2
Do not write
outside the
box
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 45.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN2374083A01* IB/M/Jun23/E10 7408/3A
Section A
Answer all questions in this section.
A stroboscope emits bright flashes of white light.
The duration of each flash and the frequency of the flashes can be varied.
Table 1 shows information about the stroboscope.
0 1
Table 1
Minimum Maximum
Duration of each flash / μs 60 300
Frequency of flashes / Hz 1 150
The duration of each flash is T1.
The time from the start of a flash to the start of the next flash is T2.
T
1
The duty cycle of a stroboscope is defined as .
T2
IB/M/Jun23/7408/3A
, 3
Do not write
outside the
box
0 1 .1 What is the maximum duty cycle of the stroboscope? [1 mark]
Tick () one box.
6.0 × 10−5
3.0 × 10−4
9.0 × 10−3
4.5 × 10−2
*02*
Turn over ►
IB/M/Jun23/7408/3A
, 4
Do not write
outside the
box
0 1 . 2 Figure 1 shows images produced in an experiment in which a bouncing ball is
illuminated by a stroboscope.
The stroboscope flashes at a constant frequency.
Figure 1
Suggest why T must be very short for this experiment.
1
[1 mark]
Question 1 continues on the next page
IB/M/Jun23/7408/3A
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