A wave with high frequency means it occurs more rapidly or often and is also considered shorter. Frequency is used to measure all sorts of wavelengths, such as light waves, sound waves, and brain waves. Let's say you are in a class with 100 people, and you have just taken a test. We thus hear the tone because the pulse traveling up the auditory nerve matches the actual tone. Essentially, we are getting a copy of the real sound.
Frustration is a feeling of tension that occurs when our efforts to reach some goal are blocked.
When this occurs, it can produce feelings of anger, which in turn can generate feelings of aggression and aggressive behavior. This theory has been utilized to explain a lot of violent behavior over time. For example, some have stated that people who become frustrated with their jobs because they don't like their work, can't get the raise they want, etc. When something is thought of only in terms of its functionality, then the person is demonstrating Functional Fixedness. This type of thinking is narrow and limited, often inhibiting the problem solving process.