Question

Velocity has to be the same at the same horizontal level in case of steady laminar flow.

(a) True

(b) False

I got this question in an interview for job.

My doubt is from Fluids Mechanical Properties in division Mechanical Properties of Fluids of Physics – Class 11

Answer 1

Right choice is (b) False

For explanation I would say: Velocity can be different at the same horizontal level if the area of the cross section at the two points is different.                                                                                                                                                       This is according to the equation of continuity, A1v1 = A2v2, where A is area and v is velocity.