Polluted air (viscosity: 18 centistokes) is passed through an economic type of gravity settler (length is equal to its width which remove all dust particles. Dust particles are 40 m size while its density is 10 g/cc. Air flow is maintained at 10000 un cubic fet per Value of gravitational constant is 9.8 m/s. Assuming an inlet velocity of (1) 2 m/s and (il) 4 m/s, obtain the necessary dimensions of the p settler. How do the dimensions of the gravity settler change with increase in inlet velocity of the gas?