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Unformatted text preview: to produce this type of image. Add rays to the diagram, and label the (i) object. (ii) image. [4] (iii) eye. F (b) ——————————— Lens F If the object height is 1.5 cm and linear magnification is +2.0, calculate (i) the height of the image. [1] ..................................................................... ..................................................................... (ii) the distance from the lens to the object. [2] ..................................................................... ..................................................................... ..................................................................... ..................................................................... (This question continues on the following page) 881-181 – 31 – N01/430/S(3) (Question H1 continued) (c) If the lens was slowly moved away from the object, would the magnification increase or decrease initially? Explain. [2] ......................................................................... ......................................................................... ......................................................................... (d) Where would the image be formed if the object were placed at the focal length? Explain. [2] ......................................................................... ......................................................................... ......................................................................... 881-181 Turn over – 32 – N01/430/S(3) H2. Caroline is looking into a pond as shown below. A tree is located on the far side of the pond. When she looks in one particular direction, she can see the bottom of the pond as well as the reflection of the top of a tree on the far side of the pond. (a) Add rays to the diagram to show how light arrives at her eyes from (i) the tree top. (ii) the bottom of the pond. [2] She notices that the bottom of the pond becomes clearer when she puts on Polaroid sunglasses. (b) Explain why. ......................................................................... ......................................................................... ......................................................................... ......................................................................... ......................................................................... ......................................................................... 881-181 [3] – 33 – N01/430/S(3) H3. Light can behave both as a particle and as a wave. Outline an experiment that demonstrates (a) the particle nature of light. [2] ......................................................................... ......................................................................... ......................................................................... ......................................................................... ......................................................................... ......................................................................... (b) the wave nature of light. ......................................................................... ......................................................................... ......................................................................... ......................................................................... ......................................................................... ......................................................................... 881-181 [2]...
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