Give scientific reason the wall of a dam is broad at its base
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The reason is that the pressure exerted by a liquid increases with its depth. Thus, as the depth increases, more and more pressure is exerted by water on the wall of the dam. A thicker wall is required to withstand greater pressure, therefore, the thickness of the dam increases towards the bottom.
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Dam is broad at the base as the pressure of water is directly proportional to the depth of water...so the dams are made broad so as to withstand the pressure of water.
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