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Damped Oscillations

The is the ra...

Question

The ________ is the ratio of inertial forces to viscous forces.

A

Reynolds number

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B

Stokes formula

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C

Archimedes formula

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D

None of these

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Solution

The correct option is A Reynolds number
The Reynolds number (Re) is the ratio of inertial resistance forces to viscous resistance for a flowing fluid. The Reynolds number is a non-dimensional factor governing resistance due to viscosity.

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Q. Match Group A with Group B :

Group A

A: Biot number

B: Grashof number

C: Prandtl number

D: Reynolds number

Group B

1: Ratio of buoyancy to viscous force

2: Ratio of inertia force to viscous force

3:Ratio of momentum to thermal diffusivities.

4:Ratio of internal thermal resistance to boundary layer thermal resistance

Q. Group-I Contains dimensionless parameter and
Group-II contains ratio

Group-I
P. Mach number
Q. Reynold number
R. Weber number
S. Froude number
Group-II
1. Ratio of inertial force and gravity force.
2. Ratio of fluid velocity and velocity of sound.
3. Ratio of inertial force and viscous force.
4. Ratio of inertial force and surface tension force.

Correct match of the dimensionless parameter in Group-I with Group-II is

P Q R S

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