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3. Waves
A section of Physics, 5054
Listing 10 of 515 questions
shows a converging lens, an object O and the image I produced by the lens. lens O lens I O 1 cm I The image formed is real and has a linear magnification of 4.0. Define the term linear magnification. Explain what is meant by real image. On a horizontal ray has been drawn from the top of the object to the lens. Continue this ray until it meets the image. Using , determine the focal length of the lens. focal length = Draw another two rays from the top of the object to show how the image is formed.
5054_s17_qp_21
THEORY
2017
Paper 2, Variant 1
View
A converging lens has a focal length of 3.0 cm. An object of height 2.0 cm is placed 5.0 cm from the centre of the lens. shows the arrangement of the object and the lens. object object lens 1 cm 1 cm (to scale) On , draw rays from the top of the object to show how the lens forms an image of the object. Mark the image clearly. The image is magnified. State one other feature of the image. Calculate the linear magnification produced by the lens in this case. magnification = State the name of one optical device that produces a magnified image as shown by .
5054_s18_qp_22
THEORY
2018
Paper 2, Variant 2
View
shows part of the ray diagram of a lens being used as a magnifying glass. Three rays are shown coming from the top of an object O. The points labelled F are one focal length from the lens. R O F F State the name of the type of lens shown in . Describe what happens to the ray of light R: • as it enters the lens • as it leaves the lens. Using all three rays from O, complete to show the image formed. Underline all of the words in the list that describe the image formed in . inverted upright real virtual
5054_s21_qp_21
THEORY
2021
Paper 2, Variant 1
View
The virtual reality headset in contains a display and a lens, as shown in . display virtual reality headset display lens eye (not to scale) The display is the object for the lens. The lens acts as a magnifying glass and forms a virtual image of the display. Describe where the display must be positioned relative to the focal length of the lens for the lens to act as a magnifying glass for the image on the display. Explain how a virtual image is formed. An arrow on the display is 3.4 cm from the lens. The virtual image of the arrow is 22 cm from the lens. shows the arrow O, the lens L and the virtual image of the arrow I, drawn on a grid with a scale of 1:2. I O L 2 cm 2 cm (scale: 1 cm represents 2 cm) On , draw a ray diagram to show the formation of the virtual image I. Determine the focal length of the lens. focal length = cm
5054_s23_qp_21
THEORY
2023
Paper 2, Variant 1
View
Questions Discovered
515