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3 marksProperties of Waves

CAPE Physics Unit 1 · 1999 · Paper 2 · Question 6(b)

Describe an experiment to demonstrate the diffraction of plane water waves in a ripple tank for a narrow gap. Draw a diagram of what you would expect to see when looking down at the surface of the ripple tank.

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Other parts of this question

  1. 6(a)(i)Describe how the displacements of P and Q vary with time.[5 marks]
  2. 6(a)(ii)Calculate the speed of the waves.[1 mark]
  3. 6(c)Explain why this occurs.[4 marks]
  4. 6(d)Write down expressions for displacement and velocity of the water molecules with time. Hence, deduce an expression for the power due to the water waves in…[5 marks]
  5. 6(e)Directly below EACH figure in your answer booklet, draw on the dotted line, the state of the water surface one quarter of a period later.[3 marks]

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