Question-

The density of particles n is a suspension is found to go as n=n0e-lamdah, where lamda is a constant and h is the height. What is the value of lamda if the density falls to no/2 When h = 10 microm?

a) 69,300 /m

b) 34,650 /m

c) 23,000 /m

d) 11,000 /m