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A sound wave beam with a intensity of 30 W/cm2 strikes a boundary and is totally reflected. What is the reflected intensity? a. 50 W/cm2

A sound wave beam with a intensity of 30 W/cm2 strikes a boundary and is totally reflected. What is the reflected intensity? a. 50 W/cm2 b. 15 W cm2 c. 10% d. 30 W/cm2

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