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5.4 Uses and dangers of EM radiation

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Question 34
H

A receiver detects radio waves of wavelength 1.5 m travelling at 3.0×108 m s−13.0\times10^8\ \mathrm{m\,s^{-1}}3.0×108 ms−1. How many complete electrical oscillations are induced in 0.020 s? Use v=fλv=f\lambdav=fλ.

[1]
A

1.0×10101.0\times10^{10}1.0×1010

B

4.0×1064.0\times10^64.0×106

C

9.0×1069.0\times10^69.0×106

D

2.0×1082.0\times10^82.0×108

Markscheme

5.4 Uses and dangers of EM radiation Questions

  1. GCSE
  2. /Physics
  3. /5.4 Uses and dangers of EM radiation

104 exam-style questions on Edexcel GCSE Physics 5.4 Uses and dangers of EM radiation, covering 5.4.1 Dangers of electromagnetic radiation, 5.4.2 Uses of electromagnetic radiation, 5.4.3 Radio waves and oscillations in circuits, and 5.4.4 Changes in atoms and nuclei generating radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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