while studying the reflection of sound four students A,B,C,D used different reflecting surface. who would obtain the best result and why .? 1)A thermocol sheet. 2)A polished plane metal sheet .2)A rough cardboard sheet . 3) A cushioned chair.
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will be right option
will be right option
Siva1812:
why?
because smooth ND polished surface good reflection of sound
understand??
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