Multiple Choice Questions
Tick mark the correct alternative in the box with pen :
Which of the following is the requirement for regular reflection of
sound?
(A) Smooth surface (B) Rough surface
(C) Vacuum
(D) Transparent rough surface
Answers
Answered by
5
Answer:
a) smooth surface
please mark as brainliest
Answered by
1
Answer:
(b)rough surface
be the answer may right
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