1. The time taken for one complete wave cycle is called:
2. Ultrasound refers to sound with a frequency:
3. SONAR stands for:
4. In medical imaging, ultrasound waves are reflected from:
5. Which of the following is NOT a use of ultrasound?
6. The wavelength is the distance between:
7. If the wave speed remains constant, If frequency increases, wavelength:
8. The speed of sound in air is approximately:
9. An echo is caused by:
10. In the wave equation , what do f, λ, and v represent?