What is Viscosity in Hindi for Students

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Mock Test on Viscosity for Students

Out of the following, the maximum viscosity is of

(A) oxygen

(B) Mercury

(D) water

Option c - glycerine

With a rise in temperature, the viscosity of a gas :

(A) increases

(B) decreases

(D) may increase or decrease depending on the nature of gas

Option a - increases

The cause of the viscosity of liquids is :

(A) diffusion

(B) gravitational force

(D) cohesive force

Option d - cohesive force

The cause of viscosity in gases is :

(A) diffusion

(B) gravitational force

(D) cohesive force

Option a - diffusion

The viscosity of an ideal fluid is :

(A) zero

(B) 0.5

(D) infinity

Option a - zero

The force of viscosity is :

(A) gravitational

(B) electromagnetic

(D) weak

Option b - electromagnetic

Viscosity is most closely related to

(A) friction

(B) adhesive molecular forces

(D) Bernoulli's principle

Option a - friction

Viscosity is the property by virtue of which a liquid :

(A) occupies a minimum surface area

(B) opposes relative motion between its adjacent layers

(D) tends to regain its deformed position

Option b - opposes relative motion between its adjacent layers

Which of the following substances possess the greatest viscosity?

(A) Mercury

(B) Water

(D) Hydrogen

Option a - Mercury

With a rise in temperature, the viscosity of liquid :

(A) increases

(B) decreases

(D) may decrease or increase depending on the nature of liquid

Option b - decreases

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