4x, or the objective lens. Hope that helps you, my friend.
Answer:
the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
Explanation:
Please tell me if it helps
According to Freud's psychoanalytic theory, rationality as well as logical thinking and reasoning are controlled by our a. pleasure principle because it can instinctively lead us to satisfy our basic needs which form logical sequence.
I thinks it’s human and sharks of humans and whales