//chapter8,Example8_8,pg 184

Dn=1.40

D=1.27

//when u=1

//(Dn^2)=4*n*lam*R=(1.40^2)

//when u=u1

//(D^2)=(4*n*lam*R)/u1=(1.27^2)

//from above eqn's

u1=((Dn^2)/(D^2))

printf("RI of liquid\n")

printf("u=%.2f",u1)