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3 marksProperties of Waves

CAPE Physics Unit 1 · 2007 · Paper 2 · Question 2(c)

Use your answer to (b) to determine the velocity of sound in the bottle.

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  1. 2When you blow across the top of a soft-drink bottle as shown in Figure 2, a tone is heard. The pitch of the sound depends on how much drink is left in the…[1 mark]
  2. 2(a)Complete Table 1 and then plot a graph of f against 1/√V using the grid opposite. There is no need to start the graph at the origin.[5 marks]
  3. 2(b)Find the gradient of the graph.[2 marks]

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