Mechanical Properties of Fluids Test

Result

Mechanical Properties of Fluids Test - 19

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Question 1
4 / -1

Pressure on an object increases from 1.01 × 10⁵ Pa to 1.165 × 10⁵ Pa He volume decrease by 10% at constant temperature. Bulk modulus of material is........

A
1.15 × 10⁵ Pa

B
51.2 × 10⁵ Pa

C
102.4 × 10⁵ Pa

D
204.8 × 10⁵ Pa
Question 2
4 / -1

Cross–sectional area of wire of length L is A. Young's modulus of material is Y. If this wire acts as a spring what is the value of force constant ?

A

B

C

D

Solution
Question 3
4 / -1

Writing on black board with a pieace of chalk is possible by the property of

A
Adhesive force

B
Cohesive force

C
Surface force

D
Viscosity
Question 4
4 / -1

When there is no external force, the shape of liquid drop is determined by

A
Surface tension of liquid

B
Density of Liquid

C
Viscosity of liquid

D
Tempreture of air only
Question 5
4 / -1

Soap helps in cleaning because

A
chemicals of soap change

B
It increase the surface tension of the solution

C
It absorbs the dirt

D
It lowers the surface tension of the solution
Question 6
4 / -1

A square frame of side L is dipped in a liquid on taking out a membrane is formed if the surface tension of the liquid is T, the force acting on the frame will be.

A
2 TL

B
4 TL

C
8 TL

D
10 TL
Question 7
4 / -1

Surface tension of a liquid is found to be infuenced by

A
It increases with the increase of temperature

B
Nature of the liquid in contact

C
Presence of soap that increase it

D
Its variation with the concentration of the liquid
Question 8
4 / -1

The surface tension of a liquid is 5 N/m. If a thin film of the area 0.02 m² is formed on a loop, then its surface energy will be

A

B

C

D

Solution
Question 9
4 / -1

A big drop of radius R is formed by 1000 small droplets of coater then the radius of small drop is

A

B

C

D

Solution
Question 10
4 / -1

If a coater drop is kept between two glasses plates then its shape is

A

B

C

D
None of these