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The cylindrical tube of a spray pump has a cross-section of `8 cm^2`, one end of which has `40` fine holes each of area `10^-8 m^2`. If the liquid flows inside the tube with a speed of `0.15 m min^-1`, the speed with which the liquid is ejected through the holes is.A. `50 ms^-1`B. `5 ms^-1`C. `0.65 ms^-1`D. `0.5 ms^-1` |
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Answer» Correct Answer - B `a_1 v_1 = a_2 v_2` `8 xx 10^-4 xx (0.15)/(60) = 40 xx 10^-8 v_2` `v_2 = 5 m//s`. |
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