Wave properties and behaviour

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Question 44
Easy

An acoustic barrier is used to reduce noise from a motorway.

Diagram showing sound energy paths at an acoustic barrier: an incident sound wave hits the barrier from the left, splitting into three arrows representing reflected energy, absorbed energy, and transmitted energy.

The incident sound energy on a section of the barrier is 0.40 J.

  • The absorbed energy is 58% of the incident energy.
  • The reflected energy is 24% of the incident energy.

Calculate the amount of transmitted energy.

[2]

Wave properties and behaviour Questions

  1. GCSE
  2. /Physics
  3. /Wave properties and behaviour