Ultrasound Frequencies and Wavelength Quiz

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If the transducer frequency is 7.5 MHz, what is the frequency in Hz?

7500 Hz

750000 Hz

75000 Hz

7500000 Hz (correct)

What is the frequency in KHz if the transducer frequency is 5 MHz?

50 KHz

5 KHz

500 KHz

5000 KHz (correct)

What determines the speed at which sound waves travel through a medium?

Density and stiffness of the media (correct)

Period of the wave

Transducer frequency

Frequency and wavelength

If the frequency of a wave is 3 Hz, what is the period of the wave?

1/3 s Signup and view all the answers

What determines the speed of sound in a medium?

Density and compressibility Signup and view all the answers

Which of the following materials has the highest speed of sound?

Bone Signup and view all the answers

If the wavelength of an ultrasound wave is 2 mm and the frequency is 5 MHz, what is the speed of sound in that medium?

$10^6$ m/s Signup and view all the answers

How does the intensity of a sound beam change if the power is quadrupled?

Quadruples Signup and view all the answers

What is the standard unit for measuring the frequency of sound waves?

Hertz Signup and view all the answers

If the speed of sound in a medium is 340 m/s and the wavelength is 0.5 m, what is the frequency in Hertz?

340 Hz Signup and view all the answers

Which factor limits the choice of transducer frequency in diagnostic ultrasound?

Both tissue penetration and image resolution Signup and view all the answers

If the transducer frequency used in ultrasound imaging is increased, what happens to the penetration and resolution?

Penetration decreases, resolution increases Signup and view all the answers

Ultrasound Frequencies and Wavelength Quiz

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Questions and Answers

If the transducer frequency is 7.5 MHz, what is the frequency in Hz?

What is the frequency in KHz if the transducer frequency is 5 MHz?

What determines the speed at which sound waves travel through a medium?

If the frequency of a wave is 3 Hz, what is the period of the wave?

What determines the speed of sound in a medium?

Which of the following materials has the highest speed of sound?

If the wavelength of an ultrasound wave is 2 mm and the frequency is 5 MHz, what is the speed of sound in that medium?

How does the intensity of a sound beam change if the power is quadrupled?

What is the standard unit for measuring the frequency of sound waves?

If the speed of sound in a medium is 340 m/s and the wavelength is 0.5 m, what is the frequency in Hertz?

Which factor limits the choice of transducer frequency in diagnostic ultrasound?

If the transducer frequency used in ultrasound imaging is increased, what happens to the penetration and resolution?

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