Edelman chapter 9

What is the best estimate of the diameter or width of the sound beam as it exits the transducer?

• 6 mm

• 9 mm

• 12 mm

• 8 mm

What is the diameter of the sound beam at a depth of 8 cm?

• 6 mm

• 9 mm

• 12 mm

• 8 mm

What is the diameter of the sound beam at a depth of 16 cm?

• 6 mm

• 9 mm

• 12 mm

• 8 mm

At what depth is the focus?

• 6 cm

• 8 cm

• 1 cm

• 12 cm

What depth marks the beginning of the focal zone?

• 6 cm

• 8 cm

• 12 mm

• 8 mm

What depth marks the end of the focal zone?

• 6 cm

• 8 cm

• 10 mm

• 10 cm

• 8 mm

At which of the following depths is the beam narrowing?

• 6 cm

• 8 cm

• 12 cm

• 10 cm

• 9 cm

At which of the following depths is the beam widening?

• 2 cm

• 4 cm

• 6 cm

• 8 cm

• 9.375 cm

At which of the following depths is the beam most likely to have the same diameter as it has at a depth of 11 cm?

• 1 cm

• 3 cm

• 5 cm

• 8 cm

• 14 cm

Which of the following terms does not belong?

• focus

• end of the near zone

• end of the Fraunhofer zone

• middle of the focal zone