The working principle of a Venturimeter, used to measure the flow rate of a liquid through a pipe, is primarily based on: MCQ with Answer and Explanation
The working principle of a Venturimeter, used to measure the flow rate of a liquid through a pipe, is primarily based on:
A. Bernoulli's Principle
B. Stokes' Law
C. Archimedes' Principle
D. Torricelli's Theorem
Answer: Option A
Solution (By JKSSB Mock Tests)
A Venturimeter consists of a converging pipe, a narrow throat, and a diverging pipe. As fluid passes through the constricted throat, its velocity increases. According to Bernoulli's principle, this increase in kinetic energy must be accompanied by a strictly corresponding decrease in fluid pressure. By measuring this pressure difference, the flow rate can be precisely calculated.
Explanation:
Newton = kg·m/s², derived from base units. Kilogram, second, candela are base units. Derived units expressed in terms of base units. Joule, watt, pascal are also derived.
Explanation:
When a wave (like light or sound) changes mediums, its velocity changes due to the new medium's optical or mechanical density. Wavelength changes proportionally with velocity (v = fλ). However, frequency is determined solely by the source generating the wave and the energy of the photons/particles, and it remains absolutely constant.
No comments yet. Be the first to start the discussion!