ultrasound and superposition and interference Flashcards
1
Q
what is ultra sound
A
- is any frequency about normal human hearing range
2
Q
what is the normal human range
A
20 - 20,000 hertz
3
Q
what is superposition
A
when two or more waves meet at a point and combine to each.
4
Q
what are coherent waves
A
they are the same type of wave that has the same frequency and has a fixed phase difference
5
Q
there are two different types of interference what are they?
A
constructive and destructive
6
Q
what is constructive
A
constructive is where two or more waves combine and increase the
