What is Vibration
One complete round trip of a simple harmonic motion is called vibration.
or
If a body in periodic motion moves to and fro over the same path, this motion is called Oscillation.
Note: First of all, you need to make sure that the department has a correspondence department, because it is not available for all specialties. And if there is, it may be necessary to pass the academic difference, because on the absentee there may be items missing from the face because of other terms of training. You can find out about the differences in the training programs at the dean’s office. After that, you need to make sure that the faculty has free space. Unfortunately, often groups are already fully formed, and only a paid branch remains free. In this case, you can leave the application and wait until after the next session free space is vacated. You can increase the chances for a successful translation if you back up the application with excellent grades, timely surrender and regular reminders of your problem at the dean’s office. Sometimes teachers who make good grades help in this.