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2 marksLenses

CSEC Physics · January 2016 · Paper 2 · Question 5(a)(i)

A converging lens can be used to form real or virtual images.

With reference to the focal lengh of the lens, describe the object distance required to produce EACH type of image.

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Other parts of this question

  1. 5(a)(ii)State the orientation of EACH image so produced.[2 marks]
  2. 5(a)(iii)Complete the ray diagram shown in Figure 6.[2 marks]
  3. 5(b)(i)Calculate the magnification where a lens produces an image height of 3.6 mm for an object 2.4 mm in height.[3 marks]
  4. 5(b)(ii)For the same magnification, calculate the image distance given that the object distance is 20 cm.[3 marks]
  5. 5(b)(iii)Calculate the focal length of this lens.[3 marks]

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