The angle of contact between drop of wat...

The angle of contact between drop of water and material of raincoat is acute angle.

Text Solution

Verified by Experts

The correct Answer is:

False . It is obtuse angle.

Topper's Solved these Questions

MECHANICAL PROPERTIES OF FLUIDS
KUMAR PRAKASHAN|Exercise SECTION -C (Objective Questions) (VSQs) Fill in the Blank|9 Videos
MECHANICAL PROPERTIES OF FLUIDS
KUMAR PRAKASHAN|Exercise SECTION -C (Objective Questions) (VSQs) Match Type Questions|6 Videos
MECHANICAL PROPERTIES OF FLUIDS
KUMAR PRAKASHAN|Exercise SECTION - B Numerical From DARPAN Based On Textbook|17 Videos
MACHANICAL PROPERTIES OF SOLIDS
KUMAR PRAKASHAN|Exercise QUESTION PAPER|11 Videos
MOTION IN A STRAIGHT LINE
KUMAR PRAKASHAN|Exercise QUESTION PAPER|11 Videos

Similar Questions

Explore conceptually related problems

Define angle of contact .

The angle of contact between mercury and glass is ……. Angle

How angle of contact depend on temperature ?

Radius of a glass capillary is 0.5 mm . Find the height of the column of water when it is held vertical in water . The density of water is 10^(3)kg m^(-3) and the the angle of contact between glass and water is 0^(@),g=9.8ms^(-2) and the surface tension of water T=0.0727Nm^(-1) .

Liquid rises to a height of 2 cm in a capillary tube and the angle of contact between the solid and the liquid is zero. If the tube is depressed more now so that top of capillary is only 1 cm above the liquid, then the apparent angle of contact between the solid and the liquid is

A horizontal ray is incident on a right-angled prism with prism angle of 4o. If the refractive index of material of the prism is 1.5, angle of emergence is .......... . Use the given figure.

The values of x for which the angle between the vectors veca =xhati - 3hatj-hatk and vecb = 2x hati + x hatj -hatk is acute, and the angle, between the vector vecb and the axis of ordinates is obtuse, are

The cohesive force between the molecules of liquid is less than the cohesive force between the molecules of plate then angle of contact obtain is …. (acute /obtuse) and free surface has shape ….(concave/convex)

Explain angle of contact in the context of intermolecular forces.

KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION -C (Objective Questions) (VSQs)

Why tefllon is coated ,the angle of contact between oil and non -stick...
Text Solution
|
Why raincoat does not wet in rain ?
Text Solution
|
Water rises to a height of 20 mm in a capillary . If the radius of th...
Text Solution
|
How the oil lamp produces light through a wick that is lit using a mat...
Text Solution
|
Why the moisture is retained in soil when a farm is being plough ?
Text Solution
|
Why it is better to wear cotton clothes in summer ?
Text Solution
|
Why the refill of marker pen which is used to write on white board is ...
Text Solution
|
Why does the water rise in a capillary tube Explain .
Text Solution
|
Why does the mercury fall in a capillary tube ?
Text Solution
|
A 20 cm long capillary tube is dipped in water The water rises upto 8 ...
Text Solution
|
In incompressible flow the density of a fluid changes with time and po...
Text Solution
|
Non -viscous flow can be a streamline.
Text Solution
|
In a steady flow velocity of the fluid at each point remains identical...
Text Solution
|
The Bernoulli equation can be considered to be a statement of the cons...
Text Solution
|
The angle of contact between drop of water and material of raincoat is...
Text Solution
|
Absence of roughness between two consecutive layers of fluid is the vi...
Text Solution
|
If the weight of body is greater than the buoyant force of liquid then...
Text Solution
|
Velocity of water at the depth in river is always slow.
Text Solution
|
Assertion : For turbulent flow Reynolds number R(e)gt2000. Reason ...
Text Solution
|
Assertion : A needle placed carefully placed on the surface of water m...
Text Solution
|