Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 12

MEDIUM

11th Telangana Board

IMPORTANT

Earn 100

Explain how surface tension can be measure experimentally.

Important Questions on Mechanical Properties of Fluids

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 1

State Bernoulli's principle. From the conservation of energy in a fluids flow through a tube, arrive at Bernoulli's equation. Give an application of Bernoulli's theorem.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 2

Define coefficient of viscosity. Explain stokes' law and explain the conditions under which a raindrop attains terminal velocity

v_{t}

. Give the expression for

v_{t}

.

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 1

Calculate the work done in blowing a soap bubble of diameter

0.6 cm

against the surface tension force. ( Surface tension of a soap solution

= 2.5 \times 10^{- 2} {Nm}^{- 1}

)

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 2

How high does methyl alcohol rise in a glass tube of a diameter

0.6 cm

? (surface tension of methyl alcohol

= 0.023 N m^{- 1}

and density

= 0.8 gm / {cm}^{3}

. Assume that the angle of contact is zero.)

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 3

What should be the radius of a capillary tube if water has to rise to a height of

6 cm

in it? (Surface tension of water

= 7.2 \times 10^{- 2} N / m

).

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 4

Find the depression of the meniscus in the capillary tube of diameter

0.4 mm

dipped in a beaker containing mercury. (Density of mercury

= 13.6 \times 10^{3} kg / m^{3}

and surface tension

= 0.49 {Nm}^{- 1}

and angle of contact

= 135 °

)

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 5

If the diameter of a soap bubbles

10 mm

and its surface tension is

0.04 N / m

. Find the excess pressure inside the bubbles.

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 11 - Mechanical Properties of Fluids>EXERCISES>Q 6

If work done by an agent to form a bubble of radius

R

is

W

, then how much energy is required to increases its radius to

2 R

.