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2 marksProperties of Waves

CAPE Physics Unit 1 · 2008 · Paper 2 · Question 2(a)

Explain how a stringed instrument such as a guitar produces a musical note.

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  1. 2(b)The apparatus shown in Figure 1 may be used to investigate waves on strings.[1 mark]
  2. 2(b)(i)By varying the setting on the signal generator a standing wave with 3 anti-nodes may be set up on the string. In the space below draw a diagram to show how the…[1 mark]
  3. 2(b)(ii)Calculate the wavelength of the wave you have drawn.[1 mark]
  4. 2(b)(iii)Write an equation for the wavelength when the string has n anti-nodes and use this to show that the relationship between the frequency of the vibrator and the…[3 marks]
  5. 2(c)The data in the Table 2 were collected using the apparatus in Figure 1 on page 7. By means of plotting a suitable graph on page 8, find the velocity of the…[5 marks]

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