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5.2 The electromagnetic spectrum

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Question 12
H

A radiographer takes many X-ray images each day. She stands behind a lead screen while each image is taken.

Why does she stand behind the lead screen?

[1]
A

Lead reflects the X-rays back towards the patient, so the image is clearer

B

Lead absorbs radio waves from the X-ray machine that could heat her body

C

Lead absorbs X-rays, which reduces her exposure to radiation that damages cells

D

Lead slows the X-rays down, so they have less energy when they reach her

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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