Question

Why studying the reflection of sound four students ABC and D used different reflection surface who would obtained the best result and why
A thermocol sheet
A polished plane matel sheet
A cushed chair

Answer 1

a polished plane metal sheet will give the best results as it does not absorb the sound like a thermocol sheet and cushed chair. the polished surface also allows for multiple reflections.

Answer 2

B will get the best results