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What was the first medical application of ultrasound?

What is a problem of using higher ultrasound frequencies for imaging?

How does increasing the frequency of ultrasound affect image resolution?

Which part of the body has the fastest speed of ultrasound propagation among tissues, potentially causing misleading effects in images?

1. What is the approximate speed of ultrasound propagation in bone?

What is the approximate speed of ultrasound propagation in fatty tissue?

Which of the following are the basic variables that describe the propagation of a monochromatic wave in time and space?

What is the primary factor that affects the speed of sound in air?

What is the speed of sound in pure water at 20°C?

Which factors determine the speed of sound (c) in a medium?

What happens to the group velocity of a wave when it travels through an absorptive medium?

Which of the following statements best describes group velocity in wave propagation?