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Q. |
What are the essential properties a medium must possess for the propagation of mechanical waves? |
A. | stable pressure |
B. | maximum friction |
C. | constant temperature |
D. | minimum friction |
Answer» D. minimum friction | |
Explanation: the friction force amongst the particles of the medium should be negligibly small so that they continue oscillating for a sufficiently long time and the wave travels a sufficiently long distance through the medium |
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