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1 markSound

CSEC Physics · 1992 · Paper 2 · Question 5(a)(ii)

Wave phenomena, diffraction, loudspeakers, sound propagation, and waveforms.

What name is given to this effect?

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Other parts of this question

  1. 5(a)(i)Draw the waves after they have passed through the gap.[2 marks]
  2. 5(b)(i)From the information given for the squawker in the table, calculate the velocity of sound.[2 marks]
  3. 5(b)(ii)Determine the missing frequency range and insert it in the table above.[2 marks]
  4. 5(b)(iii)An observer notices that when she stands at X, she hears equally well from the three speakers. However, when she stands at Y, she hears mainly from one speaker…[1 mark]
  5. 5(b)(iv)With reference to the data in the table and diagram on page 10, give an explanation for her observations while at Y.[2 marks]
  6. 5(c)(i)Compare the loudness and pitch of waveforms P and Q.[2 marks]
  7. 5(c)(ii)Compare the loudness and pitch of waveforms Q and R.[2 marks]
  8. 5(c)(iii)Explain in what other way sounds P and Q differ.[2 marks]

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