Physics 5054 · O Level · Electromagnetic spectrum

Electromagnetic spectrum — practice question

Different parts of the electromagnetic spectrum are used in applications. Which option correctly matches X-rays, ultraviolet light and microwaves with their applications?

  • AX-rays: mobile phone; ultraviolet light: fluorescent tube; microwaves: intruder alarm
  • BX-rays: killing cancerous cells; ultraviolet light: sterilising surgical instruments; microwaves: satellite television
  • CX-rays: medical imaging; ultraviolet light: television controller; microwaves: sunbed
  • DX-rays: sterilising surgical instruments; ultraviolet light: television controller; microwaves: detecting cracks in metal

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