An ideal fluid flows through a pipe of circular cross-section made of two sections with diameters 2.5 cm and 3.75 cm. The ratio of the velocities in the two pipes is

An ideal fluid flows through a pipe of circular cross-section made of

1.	An ideal fluid flows through a pipe of circular cross-section made of two sections with diameters 2.5 cm and 3.75 cm. The ratio of the velocities in the two pipes is
Answer» `9:4` `3:2` `sqrt(3):sqrt(2)` `sqrt(2):sqrt(3)` Solution :According to EQUATION of CONTINUITY `a_(1)v_(1)=a_(2)v_(2)` or `(v_(1))/(v_(2))=(a_(2))/(a_(1))=(pid_(2)^(2)//4)/(pid_(1)^(2)//4)=((d_(2))/(d_(1)))^(2)=((13.75)/(2.5))^(2)=(9)/(4)`