CBSE Class 9 Answered
WHILE DOING AN EXPERIMENT TO VERIFY LAW OF REFLECTION OF SOUND IF THE REFLECTION SURFACE IS COVERED WITH LOOSE WOOLEN CLOTH.THE REFLECTED SOUND HEARD AT PIPE (B) WILL BE:
a)more louder
b)of same loudness
c)less loudness
d)not be heard
please choose one option and give reason
Asked by Kusum and Sanjeet | 21 Dec, 2013, 07:34: PM
Expert Answer
(c) less loudness
Because though woolen cloth absorbs sound, but it is placed loose at the reflecting surface. So, sound some sound gets reflected from the surface as well
Answered by | 22 Dec, 2013, 10:02: AM
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