The Doppler Shift of Ultrasonic Waves Can Measure the Speed

question 46

Multiple Choice

The Doppler shift of ultrasonic waves can measure the speed of blood in an artery.If the frequency of the stationary source is 100 kHz and the reflected sound has a Doppler shift of 300 Hz,what is the blood flow speed? (The speed of sound inside the body is 1500 m/s. )

• A) 1.0 m/s
• B) 1.5 m/s
• C) 2.2 m/s
• D) 3.3 m/s

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Definitions:

Thioridazine

An antipsychotic medication formerly used to treat schizophrenia and other severe mental health conditions, but less common due to safety concerns.

Sertraline

An antidepressant medication used to treat a variety of conditions, including depression, anxiety disorders, and certain phobias.

Olanzapine

A medication primarily used to treat schizophrenia and bipolar disorder by affecting certain substances in the brain.

Lithium

A chemical element used primarily in psychiatric medication to treat mood disorders like bipolar disorder.