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CBSE Class 9 Answered

1.TWO ASTRONAUTS CANNOT HEAR EACHOTHER ON THE MOON. WHY? 2.WITH THE HELP OF THE DIAGRAM PLZZ EXPLAIN THE WORKING OF HUMAN EAR? 3.THE SOUND OF A EXPLOSION ON THE SURFACE OF LAKE IS HEARD BY A BOATMAN 100m AWAY AND A DIVER 100m BELOW THE POINT OF EXPLOSION. i)who will hear sound first boatman or diver? why?
Asked by Piyush Nema | 26 Feb, 2011, 02:35: AM
Expert Answer
Dear student
Pls. post each query individually.
Two astronauts cannot hear each other on moon because there is no atmosphere to reflect sound waves on moon.
Hope this helps.
Regards
Team
Topperlearning
Answered by | 26 Feb, 2011, 09:46: AM
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