plumiAstronomical telescope consisting of two converging lenses: AQA A‑Level Physics questions
AQA A-Level Physics past-paper questions on 3.9.1.1 Astronomical telescope consisting of two converging lenses, 2008–2025, with mark schemes and examiner’s reports where available.
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All 27 questions on Astronomical telescope consisting of two converging lenses, as a list
- June 2025, Paper 3 Astrophysics, Q02.1 (2 marks): Draw a ray diagram for an astronomical telescope in normal adjustment. Include in your diagram: • three non-axial rays • labelled principal foci for the lenses.
- June 2025, Paper 3 Astrophysics, Q02.2 (6 marks): An astronomer has two telescopes A and B. The astronomer uses each telescope to make observations of Mars when Mars is 0.55 AU from the Earth. Table 1 gives inf
- June 2024, Paper 3 Astrophysics, Q01.1 (2 marks): The eyepiece has a focal length of 22 mm. Determine the distance between the eyepiece and the objective lens. [2 marks] distance = m
- June 2024, Paper 3 Astrophysics, Q01.2 (2 marks): When viewed through the telescope, the image of Jupiter subtends an angle of 1.7 × 10−2 rad. Calculate, in km, the distance between the Earth and Jupiter. mean
- June 2023, Paper 3 Astrophysics, Q02.1 (1 mark): State what is meant by normal adjustment when applied to an astronomical refracting telescope. [1 mark]
- June 2023, Paper 3 Astrophysics, Q02.2 (1 mark): Which combination of lenses gives the largest angular magnification when used as an astronomical telescope in normal adjustment? Tick () one box. [1 mark] Obje
- June 2022, Paper 3 Astrophysics, Q01.2 (3 marks): Draw a labelled ray diagram for an astronomical refracting telescope in normal adjustment. Show three non-axial rays passing through both lenses. Label the prin
- June 2022, Paper 3 Astrophysics, Q01.3 (2 marks): The James Lick telescope is an astronomical refracting telescope. When in normal adjustment, the distance between the lenses of the telescope is 17.4 m and the
- June 2018, Paper 3 Astrophysics, Q01.2 (3 marks): The Griffith telescope is used to observe two point objects which subtend an angle of 1.8 × 10–6 rad at the unaided eye. The typical human eye has a minimum ang
- June 2016, PHYA5 Astrophysics (old spec), Q1(a) (3 marks): The angular magnification of the telescope is 5.0 Calculate the distance between the eyepiece lens and the objective lens of the telescope. [3 marks] distance =
- June 2016, PHYA5 Astrophysics (old spec), Q1(b)(i) (1 mark): State one other property of the image formed by the lens. [1 mark] ______________________________________________________________________________
- June 2016, PHYA5 Astrophysics (old spec), Q1(b)(ii) (2 marks): The image is formed 0.60 m from the lens. Calculate the object distance. [2 marks] object distance = ___________________________ m
- June 2016, PHYA5 Astrophysics (old spec), Q1(b)(iii) (3 marks): Draw a labelled ray diagram to show how the image is formed. A scale diagram is not required. [3 marks]
- June 2014, PHYA5 Astrophysics (old spec), Q1(a) (3 marks): Draw a ray diagram for an astronomical refracting telescope in normal adjustment. Your diagram should show the paths of three non-axial rays passing through bot
- June 2014, PHYA5 Astrophysics (old spec), Q1(b)(i) (2 marks): Calculate the focal lengths of the eyepiece lens and objective lens of the Treptow Giant Telescope. [2 marks] eyepiece lens focal length m objective lens focal
- June 2013, PHYA5 Astrophysics (old spec), Q1(a) (3 marks): Draw a ray diagram to show how a converging lens can be used to form a diminished image of a real object. Label the object, image and principal foci of the lens
- June 2013, PHYA5 Astrophysics (old spec), Q1(b) (2 marks): A student experimented with a converging lens whose focal length was known to be approximately 50cm. She placed an object and screen a fixed distance of 200cm a
- June 2013, PHYA5 Astrophysics (old spec), Q1(c) (2 marks): The lens was used as one of the components of a simple refracting astronomical telescope. State whether the lens formed the eyepiece or objective, giving reason
- June 2012, PHYA5 Astrophysics (old spec), Q1(a)(i) (2 marks): Draw a ray diagram to show how a converging lens forms a magnified real image of a real object. Label a principal focus on your diagram. (2 marks)
- June 2012, PHYA5 Astrophysics (old spec), Q1(a)(ii) (2 marks): Draw a ray diagram to show how a converging lens forms a magnified virtual image of a real object. Label a principal focus on your diagram. (2 marks)
- June 2012, PHYA5 Astrophysics (old spec), Q1(b)(i) (3 marks): A converging lens of focal length 145mm is used to produce an image of an object placed 112mm from the lens. Calculate the image distance. Give your answer to a
- June 2012, PHYA5 Astrophysics (old spec), Q1(b)(ii) (1 mark): State three properties of the image. (1 mark)
- June 2010, PHYA5 Astrophysics (old spec), Q1(a) (3 marks): Draw a ray diagram for an astronomical refracting telescope in normal adjustment. Your diagram should show the paths of three non-axial rays through both lenses
- June 2010, PHYA5 Astrophysics (old spec), Q1(b)(i) (2 marks): Calculate the focal lengths of the objective lens and eyepiece lens in an astronomical telescope of length 3.7m and angular magnification 50. focal length of ob
- June 2010, PHYA5 Astrophysics (old spec), Q1(b)(ii) (2 marks): The Triesnecker Crater on the Moon has a diameter of 23 km. Calculate the angle subtended by the image of this crater when viewed through a telescope of angular
- June 2008, PHA5W (2008 spec), Q2(a) (2 marks): 2 (a) Draw a ray diagram to show how a converging lens forms a diminished image of a real object. Label the principal foci, the object and the image on your dia
- June 2008, PHA5W (2008 spec), Q2(b) (4 marks): 2 (b) A converging lens of power 12.5 D is used to produce an image of a real object placed 0.35 m from the lens. 2 (b) (i) Calculate the image distance. 2 (b)
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