A microwave transmitter (T) and receiver (R) are set up side by side as shown.
Two flat metal plates (M) that are good reflectors for microwaves face the transmitter and receiver, several meters away. The beam from the transmitter is broad enough to reflect from both metal plates. As the lower plate is slowly moved to the right, the microwave power at the receiver is a function of x is shown in the graph below, in which each interval along the horizontal axis equals 1.0 cm.
(a) What is the wavelength of the electromagnetic radiation?
(b) What is the ratio of the amplitudes of the electromagnetic radiation entering the detector for the two maxima shown?
first / second =
The Attempt at a Solution
I don't know where to start. I know that the frequency is 1/T, but they don't give us time. I'm not sure what to do with the increasing increments on the graph.
Last edited by a moderator: