Question

select all that apply
what can happen when a sound wave front strikes a boundary that is parallel to it?
absorption
reflection
combustion
transmission

Explanation:

When a sound wave front strikes a boundary parallel to it:

• Absorption: Sound energy can be absorbed by the boundary material.
• Reflection: The sound wave can bounce back (reflect) from the boundary.
• Transmission: The sound wave can pass (transmit) through the boundary. Combustion is a chemical reaction involving burning and is not related to sound wave - boundary interactions.

Answer:

A. Absorption, B. Reflection, D. Transmission