Physics (AS & A Level) · Oct / Nov 2019 · Paper 12 · Question 25

A transmitter of electromagnetic waves is placed 45 cm from a reflective surface. The emitted waves have a frequency of 1.00 GHz. A stationary wave is produced with a node at the transmitter and a node at the surface. How many antinodes are in the space between the transmitter and the surface?

1. A1
2. B2
3. C3
4. D4

As printed in the paper