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A-level PHYSICS Paper 3 Section B Astrophysics Question Paper 2020

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A-level PHYSICS Paper 3 Section B Astrophysics Friday 5 June 2020 Afternoon Materials For this paper you must have: • a pencil and a ruler • a scientific calculator • a Data and Formu... lae Booklet. 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. 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. 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 Time allowed: The total time for both sections of this paper is 2 hours. You are advised to spend approximately 50 minutes on this section. 2 *02* IB/M/Jun20/7408/3BA 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. [Show More]

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