Water does not wet an oily glass because - Vidyadip

MCQ

Water does not wet an oily glass because

A
Cohesive force of oil $>$ adhesive force between oil and glass
B
Cohesive force of oil > cohesive force of water
C
Oil repels water
✓
Cohesive force for water > adhesive force between water and oil molecules

✓

Answer

Correct option: D.

Cohesive force for water > adhesive force between water and oil molecules

(d)

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

Explore more

More "MCQ" from Surface Tension→Surface Tension — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The stress versus strain graphs for wires of two materials $A$ and $B$ are as shown in the figure. If $Y_A$ and $Y_B$ are the Young 's modulii of the materials, then

If the distance between a point source and screen is doubled, then intensity of light on the screen will become

An inductive circuit contains a resistance of $10 \ ohm$ and an inductance of $2.0$ henry. If an ac voltage of $120$ volt and frequency of $60 \ Hz$ is applied to this circuit, the current in the circuit would be nearly

When the amount of work done is $333 \mathrm{cal}$ and change in internal energy is $167 \mathrm{cal}$, then the heat supplied is

An electric fan has blades of length $30 cm$ as measured from the axis of rotation. If the fan is rotating at 1200 r.p.m. The acceleration of a point on the tip of the blade is about

The ratio of the intensity at the centre of a bright fringe to the intensity at a point one-quarter of the distance between two fringe from the centre is

A particle covers $50 m$ distance when projected with an initial speed. On the same surface it will cover a distance, when projected with double the initial speed

If a spring extends by $x$ on loading, then the energy stored by the spring is (if $T$ is tension in the spring and $k$ is spring constant)

Two masses of $1 \mathrm{gm}$ and $4 \mathrm{gm}$ are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is

$P, Q$ and $R$ are three balloons ascending with velocities $U, 4 U$ and $8 U$ respectively. If stones of the same mass be dropped from each, when they are at the same height, then