Question

The scanner records the time from when a ultrasound wave is emitted to when its reflection is received

A technician calculates the depth of the reflection using the equation
depth = 1 x speed of ultrasound in patient× time recorded by scaner Explain why the technician uses the value 1/2 in the equation.​

Answer 1

Step-by-step explanation:

The scanner records the time from when a ultrasound wave is emitted to when its reflection is received. A technician calculates the depth of the reflection using the equation as :

`\text{depth}=(1)/(2)* \text{speed of ultrasound in patient}* \text{time recorded by scanner}`

The distance covered by ultrasonic wave when it was emitted and gets reflected is 2d. Speed is given by :

`v=(d)/(t)`

d is distance and t is time

Here, d = 2d

So, the factor of (1/2) is used because the distance covered by the wave is 2 times when it was emitted and received.