Lesson 4.6.2.5

4.6.2.5 Lenses (physics only) Quiz: AQA Physics, Unit 6

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 4.6.2.5, Lenses (physics only): 20 multiple choice questions for the AQA GCSE Physics (8463), Unit 6: Waves, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. (Physics only) A convex lens brings parallel rays of light to a single point. What is this point called?

    • The principal focus
    • The normal
    • The reflection point
    • The vertex

  2. (Physics only) What is the distance from a lens to its principal focus called?

    • Object distance
    • Image height
    • Focal length
    • Magnification

  3. (Physics only) A concave lens always forms which type of image?

    • Real
    • Magnified
    • Inverted
    • Virtual

  4. (Physics only) Which type of lens can produce a real image of an object?

    • Plane mirror
    • Glass prism
    • Convex lens
    • Concave lens

  5. What is the numerator in the lens magnification equation?

    • Object height
    • Focal length
    • Image height
    • Lens diameter

  6. What are the units of magnification produced by a lens?

    • No units
    • Centimetres
    • Millimetres
    • Metres

  7. (Physics only) An object 2 cm tall forms an image 8 cm tall. What is the magnification?

    • 6
    • 0.25
    • 4
    • 16

  8. A magnification of 0.5 means the image has what height compared to the object?

    • Quarter the height
    • Equal height
    • Double the height
    • Half the height

  9. (Physics only) An image 3 cm tall is formed from a 6 cm tall object. What is the magnification?

    • 0.5
    • 2
    • 18
    • 3

  10. What must you do before calculating lens magnification with mixed units?

    • Square both values
    • Multiply by two
    • Convert same unit
    • Add focal length

  11. What is the main purpose of ray diagrams for lenses?

    • Calculate lens mass
    • Measure glass purity
    • Show image formation
    • Find wave speed

  12. (Physics only) Which lens type causes parallel rays of light to diverge?

    • Plane glass block
    • Convex lens
    • Concave lens
    • Converging lens

  13. (Physics only) A convex lens forms an image of an object placed beyond its principal focus. What type of image is it?

    • Real
    • Virtual
    • No image
    • Upright and magnified

  14. Where must an object be placed for a convex lens to act as a magnifier?

    • At infinity
    • At focal length
    • Inside principal focus
    • Beyond twice focal length

  15. Which type of lens always produces a virtual image?

    • Convex lens
    • Concave lens
    • Plane mirror
    • Prism

  16. (Physics only) The magnification of a lens is 0.25 and the object is 12 cm tall. How tall is the image?

    • 0.02 cm
    • 48 cm
    • 12.25 cm
    • 3 cm

  17. Which two heights are required to calculate lens magnification?

    • Focal and object
    • Image and object
    • Lens and image
    • Image and focal

  18. (Physics only) Which image can be caught on a screen?

    • A concave image
    • A virtual image
    • A real image
    • A magnified virtual image

  19. (Physics only) What lens type should be investigated for magnification in the required practical?

    • Concave lenses
    • Prisms
    • Plane mirrors
    • Convex lenses

  20. (Physics only) A convex lens has a focal length of 5 cm. What is the distance from the lens to its principal focus?

    • 0.5 cm
    • 5 cm
    • 10 cm
    • 2.5 cm

All AQA Physics quizzes