which is one characteristic shared by electromagnetic and mechanical waves?\no both have a frequency and…

which is one characteristic shared by electromagnetic and mechanical waves?\no both have a frequency and amplitude.\no both move due to particles bumping into each other.\no both are formed by charged particles.\no both occur as a result of a disturbance.
Answer
Brief Explanations:
- Frequency and amplitude: Both electromagnetic and mechanical waves have frequency (number of waves per unit time) and amplitude (maximum displacement from equilibrium).
- Particle - bumping: Only mechanical waves move due to particles bumping into each other; electromagnetic waves can travel in a vacuum without particles.
- Charged - particles formation: Only electromagnetic waves are formed by accelerating charged particles; mechanical waves are not.
- Disturbance: Both types of waves are created as a result of a disturbance. A mechanical wave is created by a mechanical disturbance in a medium, and an electromagnetic wave is created by a changing electric or magnetic field (a type of disturbance).
Answer:
Both have a frequency and amplitude. Both occur as a result of a disturbance.