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6.1 Waves in air, fluids and solids

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Question 21
H

An ultrasound pulse takes 60 μs60\ \mu\text{s}60 μs to travel from a probe to a boundary inside a body and back again. The speed of ultrasound in the tissue is 1500 m/s. How far below the probe is the boundary?

[1]
A

0.023 m

B

0.040 m

C

0.045 m

D

0.090 m

Markscheme

6.1 Waves in air, fluids and solids Questions

  1. GCSE
  2. /Physics
  3. /6.1 Waves in air, fluids and solids

40 exam-style questions on AQA GCSE Physics 6.1 Waves in air, fluids and solids, covering 6.1.1 Transverse and longitudinal waves, 6.1.2 Properties of waves, 6.1.3 Reflection of waves, 6.1.4 Sound waves (HT only), and 6.1.5 Waves for detection and exploration (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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