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4.1 Wave properties

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Question 57
H

Two successive measurements give radar echo times of 80 μs80\ \mu\mathrm{s}80 μs and 60 μs60\ \mu\mathrm{s}60 μs. The wave speed is 3.0 × 108 m/s. What is the change in distance between the detector and the reflecting object?

[1]
A

A decrease of 6.0 km6.0\ \mathrm{km}6.0 km

B

An increase of 6.0 km6.0\ \mathrm{km}6.0 km

C

An increase of 3.0 km3.0\ \mathrm{km}3.0 km

D

A decrease of 3.0 km3.0\ \mathrm{km}3.0 km

Markscheme

4.1 Wave properties Questions

  1. GCSE
  2. /Physics
  3. /4.1 Wave properties

112 exam-style questions on Edexcel GCSE Physics 4.1 Wave properties, covering 4.1.1 Waves transfer energy and information, 4.1.2 Frequency, wavelength, amplitude, period and wavefronts, 4.1.3 Longitudinal and transverse waves, 4.1.4 The wave speed equations, 4.1.5 Measuring wave velocity, and 4.1.6 Calculating depth or distance from waves. Each one has a worked solution and a mark scheme showing where the marks go.

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