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5.2 The electromagnetic spectrum

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Question 17
F

A local radio station broadcasts radio waves with a frequency of 100 MHz. The speed of the radio waves is 3.0 × 108 m/s.

Use the equation: wave speed=frequency×wavelength\text{wave speed} = \text{frequency} \times \text{wavelength}wave speed=frequency×wavelength

What is the wavelength of the radio waves?

[1]
A

3.0 m3.0\ \text{m}3.0 m

B

3.0×106 m3.0 \times 10^{6}\ \text{m}3.0×106 m

C

3.0×1016 m3.0 \times 10^{16}\ \text{m}3.0×1016 m

D

0.33 m0.33\ \text{m}0.33 m

Markscheme

5.2 The electromagnetic spectrum Questions

  1. GCSE
  2. /Physics
  3. /5.2 The electromagnetic spectrum

48 exam-style questions on OCR GCSE Physics 5.2 The electromagnetic spectrum, covering 5.2.1 Electromagnetic waves in space, 5.2.2 Energy transfer by electromagnetic waves, 5.2.3 Frequency and wavelength across the spectrum, 5.2.4 Groups of the electromagnetic spectrum, 5.2.5 Visible light and the limits of human sight, 5.2.6 Light as an electromagnetic wave, 5.2.7 Uses of electromagnetic waves, 5.2.8 Hazards of ultraviolet, X-rays and gamma rays, 5.2.9 Ultrasound and imaging inside the body, and 5.2.10 Radio waves and oscillating circuits. Each one has a worked solution and a mark scheme showing where the marks go.

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