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3 marksRefraction

CSEC Physics · January 2010 · Paper 2 · Question 3(d)(iii)

The sound wave generated under water is refracted at the water - air boundary. The wavelength of this sound in water is 1.29 m.

Calculate the refractive index of water.

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Other parts of this question

  1. 3(a)What is meant by the term 'longitudinal wave'?[2 marks]
  2. 3(b)(i)Identify, using TWO letters, the distance between any TWO points of the following in the wavetrain: A wavelength[2 marks]
  3. 3(b)(ii)Identify, using TWO letters, the distance between any TWO points of the following in the wavetrain: The amplitude of the wave[2 marks]
  4. 3(c)In the box below, draw and label this waveform, clearly identifying (i) particle movement (ii) waveform movement (iii) at least one crest and one trough.[3 marks]
  5. 3(d)(i)What is the wavelength of the sound generated by the pan?[4 marks]
  6. 3(d)(ii)If, this sound is generated under water instead, what is the frequency that would be detected?[1 mark]

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