Question Detail
Question
When an observer at a fixed location watches a wave pass by in time, the time interval between two consecutive troughs (or crests) is referred to as the wave's what?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Page 2 clarifies: 'Then, Fig. 2 is relevant. The distance between two consecutive troughs is now the period, T, of the wave, the time over which the wave repeats.'
Hint
This concept relates to the temporal duration of one complete wave cycle.