A fluid is in streamline flow across a horizontal pipe of variable area of cross section

⇦

⇨

A fluid is in streamline flow across a horizontal pipe of variable area of cross section. For this which of the following statements is correct?

Options

(a) The velocity is minimum at the narrowest part of the pipe and the pressure is minimum at the widest part of the pipe
(b) The velocity is maximum at the narrowest part of the pipe and pressure is maximum at the widest part of the pipe.
(c) Velocity and pressure both are maximum at the narrowest part of the pipe
(d) Velocity and pressure both are minimum at the widest part of the pipe

Correct Answer:

The velocity is maximum at the narrowest part of the pipe and pressure is maximum at the widest part of the pipe.

Explanation:

According to Bernoulli’s theorem, P + 1/2 ?v² = constant and Av = constant. If A is minimum, v is maximum, P is minimum

Related Questions:

1. Two stones of masses m and 2m are whirled in horizontal circles, the heavier one
2. Pressure gradient has the same dimensions as that of
3. If the angle of minimum deviation is 60° for an equilateral prism, then the refractive
4. Light emitted during the de excitation of electron from n=3 to n=2, when incident
5. A spherical liquid drop of radius R is divided into 8 equal droplets. If the surface

Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends