Question

find the percent reduction in intensity for a 1-mhz ultrasound beam traversing 10 cm of material having an attenuation of 1 db/cm.

Answer 1

$I_{o}= \frac{I_{o} }{10}$  is the reduction in intensity that is 90%.

What causes a sound's strength to lessen?

extending the distance The square of the distance from the source of the sound wave determines how loud the sound is. Since sound waves transmit their energy over a two- or three-dimensional medium, their intensity reduces as they get further away from their source.

What in wave theory is intensity?

The intensity of a wave is the amount of energy it transports over a surface in a unit of time and area. It is also equal to the energy density times the wave speed. Watts per square meter are typically used to measure it. A wave's strength and amplitude will affect intensity.

Learn more about sound waves here:

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