Physics 0625 · IGCSE · Electromagnetic spectrum

Electromagnetic spectrum — practice question

A transmitter emits radio waves with wavelength $1500\,\text{m}$. The waves take $0.025\,\text{s}$ to go from the transmitter to a radio receiver. What is the separation between the radio transmitter and the receiver?

  • A$5.0 \times 10^3\,\text{m}$
  • B$2.0 \times 10^5\,\text{m}$
  • C$7.5 \times 10^6\,\text{m}$
  • D$1.1 \times 10^{10}\,\text{m}$

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