Advertisements
Advertisements
प्रश्न
If ‘θ’ represents the angle of contact made by a liquid which completely wets the surface of the container then ______.
विकल्प
θ = 0
0 < θ < `pi/2`
θ = `pi/2`
`pi/2` < θ < π
Advertisements
उत्तर
If ‘θ’ represents the angle of contact made by a liquid which completely wets the surface of the container then θ = 0.
APPEARS IN
संबंधित प्रश्न
A water-proofing agent changes the angle of contact ______
The angle of contact for a liquid which wets the surface of a solid is ____________.
Which of the following statements is incorrect?
What is the angle between resultant of A + B and A x B.
The angle of contact at the interface of water glass is 0°, ethyl alcohol-glass is 0°, mercury-glass is 140° and methyl iodide-glass is 30°. A glass capillary is put in a trough containing one of these four liquids. It is observed that the meniscus is convex. The liquid in trough is ____________.
A glass plate is partly dipped vertically in the mercury and the angle of contact is measured. If the plate is inclined, then the angle of contact will ____________.
What is the shape assumed by the surface when a non-wetting liquid is placed in a capillary tube?
A cylindrical vessel containing a liquid is rotated about its axis so that the liquid rises at its sides as shown in the figure. The radius of vessel is 5 cm and the angular speed of rotation is ω rad s-1. The difference in the height, h (in cm) of liquid at the centre of vessel and at the side will be :

With the increase in temperature, the angle of contact ______.
A prism has a refracting angle of 60°. When placed in the position of minimum deviation, it produces a deviation of 30°. The angle of incidence is ______.
A ray of light travelling through rarer medium is incident at very small angle i on a glass slab and after refraction its velocity is reduced by 20%. The angle of deviation is ______.
Which of the following statements is correct regarding the angle of contact θc of a liquid drop with a flat solid surface?
