give any two know example of sound reflection?
गिव एनी टू एग्जांपल ऑफ साउंड रिफ्लेक्शन
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Take two tubes and place them alongside a wall. Now, put a speaker or some sound source close to one end of the tube. You will observe that sound can be heard at the other end of the tube. With the help of this activity, it is proven that surface of the wall does reflect the sound waves.
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