AQA A LEVEL PHYSICS PAPER 3 SECTION B- ASTROPHYSICS FRIDAY 5 JUNE 2020
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS
Paper 3
Section B Astrophysics
Friday 5 June 2020 Afternoon Time allowed: The total time for
both sections of this paper is
Materials
For this paper you must have: 2 hours. You are advised to
• a pencil and a ruler spend approximately
• a scientific calculator
• a Data and Formulae Booklet.
50 minutes on this section.
Instructions For Examiner’s Use
• Use black ink or black ball-point pen.
Question Mark
• Fill in the boxes at the top of this page.
• Answer all questions. 1
• You must answer the questions in the spaces provided. Do not write 2
outside the box around each page or on blank pages. 3
• If you need extra space for your answer(s), use the lined pages at the end of
4
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 TOTAL
to be marked.
• Show all your working.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 35.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN2074083ba01*
IB/M/Jun20/E8 7408/3BA
, 2
Do not write
outside the
Section B box
Answer all questions in this section.
0 1 . 1 Draw a ray diagram for a Cassegrain telescope.
Your diagram should show the paths of two rays up to the eyepiece lens.
The rays should initially be parallel to the principal axis.
[2 marks]
principal
axis
0 1 . 2 A spacecraft passes Pluto at a distance of 12 500 km. The telescope on board has
an aperture of diameter 0.21 m and operates at a wavelength of 450 nm.
Discuss whether this telescope is suitable for studying a crater with a diameter of
approximately 1 km on Pluto.
[3 marks]
*02*
IB/M/Jun20/7408/3BA
, 3
Do not write
outside the
0 1 . 3 The Hubble telescope has an aperture of diameter 2.4 m. box
Compare the collecting power of the Hubble telescope with the telescope on the
spacecraft in Question 01.2.
[2 marks]
0 1 . 4 An astrophysicist had to decide whether to use a reflecting telescope or a refracting
telescope on the spacecraft in Question 01.2.
Discuss which type of telescope to use.
[3 marks]
10
Turn over ►
*03*
IB/M/Jun20/7408/3BA
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS
Paper 3
Section B Astrophysics
Friday 5 June 2020 Afternoon Time allowed: The total time for
both sections of this paper is
Materials
For this paper you must have: 2 hours. You are advised to
• a pencil and a ruler spend approximately
• a scientific calculator
• a Data and Formulae Booklet.
50 minutes on this section.
Instructions For Examiner’s Use
• Use black ink or black ball-point pen.
Question Mark
• Fill in the boxes at the top of this page.
• Answer all questions. 1
• You must answer the questions in the spaces provided. Do not write 2
outside the box around each page or on blank pages. 3
• If you need extra space for your answer(s), use the lined pages at the end of
4
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 TOTAL
to be marked.
• Show all your working.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 35.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*JUN2074083ba01*
IB/M/Jun20/E8 7408/3BA
, 2
Do not write
outside the
Section B box
Answer all questions in this section.
0 1 . 1 Draw a ray diagram for a Cassegrain telescope.
Your diagram should show the paths of two rays up to the eyepiece lens.
The rays should initially be parallel to the principal axis.
[2 marks]
principal
axis
0 1 . 2 A spacecraft passes Pluto at a distance of 12 500 km. The telescope on board has
an aperture of diameter 0.21 m and operates at a wavelength of 450 nm.
Discuss whether this telescope is suitable for studying a crater with a diameter of
approximately 1 km on Pluto.
[3 marks]
*02*
IB/M/Jun20/7408/3BA
, 3
Do not write
outside the
0 1 . 3 The Hubble telescope has an aperture of diameter 2.4 m. box
Compare the collecting power of the Hubble telescope with the telescope on the
spacecraft in Question 01.2.
[2 marks]
0 1 . 4 An astrophysicist had to decide whether to use a reflecting telescope or a refracting
telescope on the spacecraft in Question 01.2.
Discuss which type of telescope to use.
[3 marks]
10
Turn over ►
*03*
IB/M/Jun20/7408/3BA
