The of vibration of a wave is defined as that which has the lowest frequency. dis is for final exammm on a p e x

fundamental frequency

Explanation:

The natural frequency, or fundamental frequency, often referred to simply as the fundamental, is defined as the lowest frequency of a periodic waveform. In music, the fundamental is the musical pitch of a note that is perceived as the lowest partial present

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.