MCQ
A liquid does not wet the solid surface if angle of contact is
  • A
    $0$
  • B
    equal to $45^{\circ}$
  • C
    equal to $60^{\circ}$
  • greater than $90^{\circ}$

Answer

Correct option: D.
greater than $90^{\circ}$
d
If angle of contact is greater than $90^{\circ},$ then liquid will not wet the wall of container.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Ratio of the wavelengths of first line of Lyman series and first line of Balmer series is
If the mass of the planet is $10\%$ less than that of the earth and radius is $20\%$ greater than that of earth, the acceleration due to gravity on the planet will be
The magnetic flux through a circuit of resistance $R$ changes by an amount $\Delta \phi $ in time $\Delta t$, Then the total quantity of electric charge $Q$, which passing during this time through any point of the circuit is given by
If a magnet of pole strength $m$  is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will be
In a reactor, $2\, kg$ of ${ }_{92} U ^{235}$ fuel is fully used up in $30$ days. The energy released per fission is $200\, MeV.$ Given that the Avogadro number, $N =6.023 \times 10^{26}$ per kilo mole and $1\, eV =1.6 \times 10^{-19}\, J .$ The power output of the eactor is close to$.....MW$
If ${\mu _{_0}}$ be the relative permeability and ${K_0}$ the dielectric constant of a medium, its refractive index is given by
Two bodies performing $SHM$ have same amplitude and frequency. Their phases at a certain instant are as shown in the figure. The phase difference between them is
When a load of $10 \,kg$ is suspended on a metallic wire, its length increase by $2 \,mm$. The force constant of the wire is $........ N / m$
A force of $19.6\, N$ when applied parallel to the surface just moves a body of mass $10 \,kg$ kept on a horizontal surface. If a $5\, kg$ mass is kept on the first mass, the force applied parallel to the surface to just move the combined body is........ $N.$ 
A projectile of mass $3\,m$ explodes at highest point of its path. It breaks into three equal parts. One part retraces its path, the second one comes to rest. The distance of the third part from the point of projection when it finally lands on the ground is ........$m.$ (The range of the projectile was $100\,\,m$  if no explosion would have taken place)