MCQ
On decreasing the temperature, surface tension:
- ✓Increases
- BDecreases
- CRemains unchanged
- DNone of these
✓
Answer
Correct option: A.
Increases
A
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A body is whirled in a horizontal circle of radius $20 \,cm$. It has angular velocity of $10\, rad/s$. What is its linear velocity at any point on circular path ....... $m/s$
→The displacement of an oscillator is given by $x = a\, \sin \, \omega t + b\, \cos \, \omega t$. where $a, b$ and $\omega$ are constant. Then :-
→On a long horizontal belt, a child runs to and fro with a speed of $9\,km/h$ (with respect to the belt) between his father and mother located $50\,m$ apart on the moving belt. The belt moves with a speed of $4\,km/h.$ For an observer on the platform the speed of the child in the direction of motion of the belt is.........$km/h$
→In order to stop a car in shortest distance on a horizontal road, one should:
A particle is projected at angle $\theta$ with horizontal from ground. The slop $(m)$ of the trajectory of the particle varies with time $(t)$ as ...........
→A device used to measure very high temperature is
In the figure one fourth part of $a$ uniform disc of radius $R$ is shown. The distance of the centre of mass of this object from centre $‘O’$ is:
→Two spring of force constants $k_1$ and $k_2$ are connected to a mass $m$ as shown in figure. The frequency of oscillation of the mass is $f.$ If both $k_1$ and $k_2$ are made four times their original values, the frequency of oscillation becomes
→If the axis of rotation of the earth were extended into space, then it would pass close to
Moment of inertia of a semicircular ring of radius $R$ and mass $M$ ; about an axis passing through $A$ and perpendicular to the plane of the paper is
→