Assertion A: In the equation $h_f=f\frac{1}{d}\frac{v^2}{2g}$, for laminar flow through the pipe, the term v (mean velocity of flow) is given by $v=\frac{\left(p_1-p_2\right)r^2}{8\mu l}$

Reason R: The term 'f' (friction factor) in the above equation equals $64 1 Both A and R are true and R is the correct explanation of A   2 Both A and R are true but R is not a correct explanation of A   3 A is true but R is false   4 A is false but R is true Display Comments Leave a comment Login at first then you can submit comment. Click here to login. $