Q. Most commercial ultrasonic testing is accomplished using frequencies between: (Solved)
1. 1 and 25 kHz
2. 0.2 and 25 MHz
3. 1 and 1 000 kHz
4. 15 and 100 MHz
- b. 0.2 and 25 MHz
1. 1 and 25 kHz
2. 0.2 and 25 MHz
3. 1 and 1 000 kHz
4. 15 and 100 MHz