Physics 0625 · IGCSE · Electromagnetic spectrum

Electromagnetic spectrum — practice question

A microwave signal needs $0.24$ seconds to go from a transmitting station on Earth to a satellite and then return to the station on Earth. Microwaves travel at $3.0 \times 10^8\,\text{m s}^{-1}$. What is the distance between the transmitting station and the satellite?

  • A$36\,000\ \text{km}$
  • B$72\,000\ \text{km}$
  • C$36\,000\,000\ \text{km}$
  • D$72\,000\,000\ \text{km}$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI