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Statement I : The stream of water flowing at high speed from a garden hose pipe tends to spread like a fountain when held vertically up , but tends to narrow down when held vertically down and Statement 2 : In any steady flow of an incompressible fluid, the volume flow rate of the fluid remains constant. |
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Answer» Statement-I is true, Statement-II is true and Statement-II is correct explanation for Statement-I. where a = area of cross-section and v = velocity `rArr` If v decreases a INCREASES and vice -versa. When stream of water moves up, its speed (v) decreases and therefore .a. increases i.e. the water spreads out as a fountain. When stream of water from hose pipe moves down, its speed increases and therefore, area of cross section decreases. Therefore, statement - 1 is true and statement - 2 is the correct explanation of statement. - 1 |
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