Physics (AS & A Level) · Oct / Nov 2020 · Paper 13 · Question 26

Two satellites in orbit around the Earth are at a constant distance of 100 km apart from each other. Satellite X transmits a microwave pulse towards satellite Y. The pulse takes time T to reach Y. Satellite Y then transmits a pulse of visible light towards satellite X. What is the time taken for the pulse of light to reach X?

1. A10^{-5} T
2. B10^{-3} T
3. C10^{-2} T
4. DT

As printed in the paper