The surface tension of a liquid

Name: The surface tension of a liquid
Uploaded: 2021-01-01T18:41:02.000Z
Duration: 2 min
Description: The surface tension of a liquid

DOWNLOAD APPMICRO CLASSPDFsBLOGBECOME A TUTORHOME

HOME BECOME A TUTOR BLOG PDFs MICRO CLASS DOWNLOAD APP

Class 11 Physics Mechanics Mechanical Properties of Fluids

513

150

The surface tension of a liquid

(a)

increases with area

(b)

decreases with area

(c)

increase with temperature

(d)

decrease with temperature

Correct answer: (d)

Solution:

The surface tension of a liquid decreases with temperature.

T = T_{0} (1 - α t)

513

150

Connecting you to a tutor in 60 seconds.

Get answers to your doubts.

Connecting you to a tutor in 60 seconds.

Get answers to your doubts.

Related Questions

A thin plate

A B

of large area

A

is placed symmetrically in a small gap of height

h

filled with water of viscosity

η_{0}

and the plate has a constant velocity

v

by applying a force

F

as shown in the figure. If the gap is filled with some other liquid of viscosity

0.75 η_{0}

, at what minimum distance (in cm) from top wall should the plate be placed in the gap, so that the plate can again be pulled at the same constant velocity

V

, by applying the same force

F

? (Take

h = 20 c m)

2 0^{o}

C, to attain the terminal velocity how fast will an aluminium sphere of radii

1 m m

fall through water. Assume flow to be laminar flow and specific gravity

(A l) - 2.72

If the terminal speed of a sphere of gold (density

= 19.5 k g / m^{3}

) is

0.2 m / s

in a viscous liquid (density

= 1.5 k g / m^{3}

), find the terminal speed of a sphere of silver (density

= 10.5 k g / m^{3}

) of the same size in the same liquid.

If the terminal speed of a sphere of gold (density

= 19.5 k g / m^{3}

) is

0.2 m / s

in a viscous liquid (density

= 1.5 k g / m^{3}

), find the terminal speed of a sphere of silver (density

= 10.5 k g / m^{3}

) of the same size in the same liquid

A square plate of 0.1 metre side moves parallel to a second plate with a velocity of 0.1 m/s,both plates being immersed in water. If the viscous force is 0.002 newton and the coefficient of viscosity is 0.01 poise,distance between the plates in metre is:

An air bubble of radius

1 m m

is allowed to rise through a long cylindrical column of a viscous liquid of radius

5 c m

and travels at a steady rate of

2.1 c m

per second. If the density of the liquid is

1.47 g / c c

, find its viscosity. Assume

g = 980 c m / s^{2}

and neglect the density of air.

A ball of mass m and radius r is released in the viscous liquid. The value of its terminal velocity is proportional to :

The

200 m

free style women's swimming gold medal at Seol Olympic

1988

went to Heike Friendrich of Each Germany when she set a new Olympic record of

1

minute and

57.56

seconds. Assume that she covered most of the distance with a uniform speed and had to exert

460 W

to maintain her speed. Calculate the average force of resistance offered by the water during the swim.

Related Questions

A thin plate

A B

of large area

A

is placed symmetrically in a small gap of height

h

filled with water of viscosity

η_{0}

and the plate has a constant velocity

v

by applying a force

F

as shown in the figure. If the gap is filled with some other liquid of viscosity

0.75 η_{0}

, at what minimum distance (in cm) from top wall should the plate be placed in the gap, so that the plate can again be pulled at the same constant velocity

V

, by applying the same force

F

? (Take

h = 20 c m)

2 0^{o}

C, to attain the terminal velocity how fast will an aluminium sphere of radii

1 m m

fall through water. Assume flow to be laminar flow and specific gravity

(A l) - 2.72

If the terminal speed of a sphere of gold (density

= 19.5 k g / m^{3}

) is

0.2 m / s

in a viscous liquid (density

= 1.5 k g / m^{3}

), find the terminal speed of a sphere of silver (density

= 10.5 k g / m^{3}

) of the same size in the same liquid.

If the terminal speed of a sphere of gold (density

= 19.5 k g / m^{3}

) is

0.2 m / s

in a viscous liquid (density

= 1.5 k g / m^{3}

), find the terminal speed of a sphere of silver (density

= 10.5 k g / m^{3}

) of the same size in the same liquid

An air bubble of radius

1 m m

is allowed to rise through a long cylindrical column of a viscous liquid of radius

5 c m

and travels at a steady rate of

2.1 c m

per second. If the density of the liquid is

1.47 g / c c

, find its viscosity. Assume

g = 980 c m / s^{2}

and neglect the density of air.

A ball of mass m and radius r is released in the viscous liquid. The value of its terminal velocity is proportional to :

The

200 m

free style women's swimming gold medal at Seol Olympic

1988

went to Heike Friendrich of Each Germany when she set a new Olympic record of

1

minute and

57.56

seconds. Assume that she covered most of the distance with a uniform speed and had to exert

460 W

to maintain her speed. Calculate the average force of resistance offered by the water during the swim.

Home
Blog
Micro Class
PDFs
Become a Tutor
Download App

About Us
Contact Us
Privacy Policy

Home
Blog
Micro Class
PDFs
Become a Tutor
Download App

About Us
Contact Us
Privacy Policy