Ultrasound of intensity 150 W/m2 is produced by the rectangular head of a medical imaging device measuring 3.00 by 5.00 cm. What is the power output?
a)2250 W
b)10 W
c)0.225 W
d)100 kW
Area of head that produces Ultrasound,

Power output by the device-
P=intensity of Ultrasound x Area of head



So option (C) is correct.
in case of any confusion with the solution please comment.
Ultrasound of intensity 150 W/m2 is produced by the rectangular head of a medical imaging device...
Ultrasound of intensity 125 W/m2 is produced by the rectangular head of a medical imaging device measuring 3.50 cm by 4.00 cm. What is the power output of the device? power output: _________________ W
Ultrasound of intensity 1.70 ✕ 10−2 W/m2 is produced by the rectangular head of a medical imaging device measuring 3.00 cm by 5.25 cm. What is its power output (in W)?
Please show me how to get the right answer for part 1 of the
question:
Please show me how to get the right answer for part 2 of the
question:
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following is true?
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