Question

The ratio of inertial forces to viscous forces is known as __________.

• A. Froude number
• B. Reynolds number
• C. Power number
• D. Biot number

Hint:

The Reynolds number is a key indicator in fluid dynamics, helping to determine whether the flow will be laminar or turbulent based on the relative magnitude of inertial and viscous forces.

Answer 1

The Correct Option is B

The ratio of inertial forces to viscous forces is known as the Reynolds number. The Reynolds number is a dimensionless quantity used to predict the flow regime in fluid mechanics. When the Reynolds number is low, the flow is laminar, dominated by viscous forces. When it is high, the flow is turbulent, dominated by inertial forces. Thus, the correct answer is (B) Reynolds number.