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4 Waves

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Question 59

An engineer tests a vibration isolator made from three bonded layers. A sound wave passes through each layer. The source of the sound remains unchanged.

The speeds of sound shown in the table are known to be correct. Exactly one of the wavelength measurements is incorrect.

layerspeed of sound in the layer in m/s\text{m/s}m/smeasured wavelength in m\text{m}m
steel plate50000.20
rigid resin25000.10
silicone rubber10000.060

Evaluate the wavelength measurements. Identify the incorrect measurement and calculate its correct value.

[4]
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4 Waves Questions

  1. GCSE
  2. /Physics
  3. /4 Waves

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