2.3.56 - Pulse-echo techniques

Understand how a pulse-echo technique can provide information about the position of an object and how the amount of information obtained may be limited by the wavelength of the radiation or by the duration of pulses.

Use - pulse-echo techniques to connect the rule to the data and decision in the question.

This matters because - pulse-echo techniques determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - pulse-echo techniques to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Pulse-echo techniques is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.