DP Physics Questionbank

Description

Nature of science:

Deductive logic: The use of virtual images is essential for our analysis of lenses and mirrors. (1.6)

Understandings:

• Thin lenses
• Converging and diverging lenses
• Converging and diverging mirrors
• Ray diagrams
• Real and virtual images
• Linear and angular magnification
• Spherical and chromatic aberrations

Applications and skills:

• Describing how a curved transparent interface modifies the shape of an incident wavefront
• Identifying the principal axis, focal point and focal length of a simple converging or diverging lens on a scaled diagram
• Solving problems involving not more than two lenses by constructing scaled ray diagrams
• Solving problems involving not more than two curved mirrors by constructing scaled ray diagrams
• Solving problems involving the thin lens equation, linear magnification and angular magnification
• Explaining spherical and chromatic aberrations and describing ways to reduce their effects on images

Guidance:

• Students should treat the passage of light through lenses from the standpoint of both rays and wavefronts
• Curved mirrors are limited to spherical and parabolic converging mirrors and spherical diverging mirrors
• Only thin lenses are to be considered in this topic
• The lens-maker’s formula is not required
• Sign convention used in examinations will be based on real being positive (the “real-is-positive” convention)

Data booklet reference:

International-mindedness:

• Optics is an ancient study encompassing development made in the early Greco-Roman and medieval Islamic worlds

Theory of knowledge:

• Could sign convention, using the symbols of positive and negative, emotionally influence scientists?

Utilization:

• Microscopes and telescopes
• Eyeglasses and contact lenses

Aims:

• Aim 3: the theories of optics, originating with human curiosity of our own senses, continue to be of great value in leading to new and useful technology
• Aim 6: experiments could include (but are not limited to): magnification determination using an optical bench; investigating real and virtual images formed by lenses; observing aberrations

Directly related questions

• 18M.3.SL.TZ1.8b: A system consisting of a converging lens of focal length F1 (lens 1) and a diverging lens (lens...
• 18M.3.SL.TZ1.8a.iii: Light passing through this lens is subject to chromatic aberration. Discuss the effect that...
• 18M.3.SL.TZ1.8a.ii: The lens is 18 cm from the screen and the image is 0.40 times smaller than the object. Calculate...
• 18M.3.SL.TZ1.8a.i: Identify whether the image is real or virtual.
• 18M.3.SL.TZ2.9a: Identify, with the letter X, the position of the focus of the primary mirror.
• 18M.3.SL.TZ2.8b: The diagram shows an incomplete ray diagram which consists of a red ray of light and a blue ray...
• 18M.3.SL.TZ2.8a.ii: calculate the linear magnification.
• 18M.3.SL.TZ2.8a.i: determine the focal length of the lens.
• 17N.3.SL.TZ0.9c.iv: The screen is now correctly positioned to form a focused image of point R. However, the top of...
• 17N.3.SL.TZ0.9c.iii: A screen is positioned to form a focused image of point Q. State the direction, relative to Q, in...
• 17N.3.SL.TZ0.9c.ii: Calculate the vertical distance of point Q′ from the principal axis.
• 17N.3.SL.TZ0.9c.i: On the diagram, draw two rays to locate the point Q′ on the image that corresponds to point Q on...
• 17N.3.SL.TZ0.9b.ii: State three characteristics of the image.
• 17N.3.SL.TZ0.9b.i: Determine the position of the image.  
• 17N.3.SL.TZ0.9a.ii: State the maximum possible distance from an object to the lens in order for the lens to produce...
• 17N.3.SL.TZ0.9a.i: Sketch a ray diagram to show how the magnifying glass produces an upright image.  
• 17M.3.SL.TZ2.8c: Two parallel rays are incident on a system consisting of a diverging lens of focal length 4.0 cm...
• 17M.3.SL.TZ2.8b: Explain your sketch in (a)(i).
• 17M.3.SL.TZ2.8a.ii: On the diagram, sketch the wavefront in air that passes through point P. Label this wavefront Y.
• 17M.3.SL.TZ2.8a.i: On the diagram, sketch the part of wavefront X that is inside the lens.
• 17M.3.SL.TZ1.7a.iv: On the diagram draw rays to locate the focal point of L2. Label this point F.
• 17M.3.SL.TZ1.7a.iii: The distance between the lenses is 18 cm. Determine the focal length of L2.
• 17M.3.SL.TZ1.7a.ii: Show that the image of the object formed by L1 is 12 cm to the right of L1.
• 17M.3.SL.TZ1.7a.i: State what is meant by a virtual image.
• 16N.3.SL.TZ0.12d: The lens is moved to a second position where the image on the screen is again focused. The...
• 16N.3.SL.TZ0.12c: Calculate the focal length of the lens.
• 16N.3.SL.TZ0.12b: Determine the distance between the lamp and the lens.
• 16N.3.SL.TZ0.12a: Identify the nature of the lens.
• 16N.3.SL.TZ0.11b: The incident ray shown in the diagram makes a significant angle with the optical axis. (i) State...
• 16N.3.SL.TZ0.11a: A ray of light is incident on a converging mirror. On the diagram, draw the reflection of the...
• 16M.3.SL.TZ0.10b: Outline why sign convention is necessary in optics.
• 16M.3.SL.TZ0.9c: Outline the advantage of parabolic mirrors over spherical mirrors.
• 16M.3.SL.TZ0.9b: Estimate the linear magnification of the image.
• 16M.3.SL.TZ0.9a: Construct a ray diagram for object O. Label the image I.
• 15M.3.SL.TZ1.21d: Describe how the effects of chromatic aberration may be reduced.
• 15M.3.SL.TZ1.21b: (i) Deduce the magnification of the lens. (ii) State and explain the nature of the image formed...
• 15M.3.SL.TZ1.21c: The object is coloured and the image shows chromatic aberration. Explain what is meant by...
• 15M.3.SL.TZ2.20b: Argus uses an astronomical telescope to observe a telecommunications tower. The height of the...
• 15M.3.SL.TZ2.20a: (i) Using the diagram, determine the power of the lens. (ii) On the diagram, construct lines to...
• 15N.3.SL.TZ0.20a.ii: Anna places a screen at the image position. Outline why she cannot see an image on the screen.
• 15N.3.SL.TZ0.20a.i: On the diagram, construct rays to locate the image of the arrow. The focal points of the lens are...
• 15N.3.SL.TZ0.20b: Anna uses the same lens with an illuminated object. She finds that a clear image of the object is...
• 14N.3.SL.TZ0.20a.i: Define principal axis.
• 14N.3.SL.TZ0.20a.ii: Construct rays to locate the position of the image.
• 14N.3.SL.TZ0.20a.iii: Identify the nature of the image.
• 14N.3.SL.TZ0.20b.i: The lens is covered with a wide aperture. Using the diagram, sketch the likely appearance of the...
• 14N.3.SL.TZ0.20b.ii: Outline why reducing the size of the aperture will reduce the effects of spherical aberration.
• 13M.3.SL.TZ1.20a: An object is placed 0.10 m in front of the lens. (i) On the diagram, construct rays to locate...
• 13M.3.SL.TZ1.20b: The object in (a) is now moved so that it is located 0.40 m from the lens. Calculate (i) the...
• 13M.3.SL.TZ1.20d: The refractive index of the glass in the lens is greater for blue wavelengths than for red...
• 12M.3.SL.TZ1.18b: (i) Describe the pattern produced on a screen by a red laser beam incident on a diffraction...
• 12M.3.SL.TZ1.17a: (i) Define the angular magnification of a magnifying glass. (ii) Derive an equation for the...
• 12M.3.SL.TZ1.17b: An object is positioned 8.00 cm from a magnifying glass of focal length 15.0 cm. (i) Calculate...
• 11M.3.SL.TZ2.20a: Define angular magnification.
• 11M.3.SL.TZ2.20b: A thin converging lens of focal length 4.5 cm is to be used as a magnifying glass. The observer...
• 11M.3.SL.TZ2.20c: Suggest two reasons why, for high magnifications, a combination of lenses is used rather than a...
• 11M.3.SL.TZ2.19b: A single lens is used to form a magnified real image of an object. Explain, with reference to the...
• 12N.3.SL.TZ0.21c: The lens has a focal length f. When the image is formed at the near point, the distance u of the...
• 12N.3.SL.TZ0.21d: A compound microscope consists of an eyepiece lens of focal length 6.0 cm and an objective lens...
• 11N.3.SL.TZ0.16c: Lenses used in the compound microscope are subject to spherical aberration and chromatic...
• 11N.3.SL.TZ0.16a: A convex lens used as a magnifying glass has a focal length of fe. Derive an expression for the...
• 11N.3.SL.TZ0.16b: The convex lens in (a) is used as the eyepiece of a compound microscope. An object is placed...
• 12N.3.SL.TZ0.21b: A converging lens is used as a magnifying glass. On the diagram draw rays to construct the image...
• 13N.3.SL.TZ0.15a: Construct rays on the diagram to show how the final image is formed.
• 13N.3.SL.TZ0.15c: Outline how the effects of chromatic aberration in the microscope eyepiece can be reduced by...
• 13N.3.SL.TZ0.15b: The intermediate image forms 14.8 cm from the objective lens. The distance between the lenses is...
• 11M.3.SL.TZ1.20a: (i) Define the term focal point. (ii) On the diagram above, construct the paths of two rays in...