MCQ
Which graph represents the variation of surface tension with temperature over small temperature ranges for water
- A
- ✓
- C
- D
✓
Answer
Correct option: B.
b
(b)${T_c} = {T_o}(1 - \alpha t)$ i.e. surface tension decreases with increase in temperature.
(b)${T_c} = {T_o}(1 - \alpha t)$ i.e. surface tension decreases with increase in temperature.
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
If a carrier wave $C\left( t \right) = A\,\sin \,{\omega _c}t$ is amplitude modulated by a modulator signal $m\left( t \right) = A\,\sin \,{\omega _m}t$ then the equation of modulated signal $[C_m(t)]$ and its modulation index are respectively
→Two particles move on a circular path (one just inside and the other just outside) with angular velocities $\omega$ and $5\omega$ starting from the same point. Then
→For harder $X-$ rays
→A sphere, a cube and a disc all of the same material, quality and volume are heated to $600\,^oC$ and left in air. Which of these will have the lowest rate of cooling ?
→The ratio of the magnitude of the magnetic field and electric field intensity of a plane electromagnetic wave in free space of permeability $\mu_0$ and permittivity $\varepsilon_0$ is (Given that $c$ - velocity of light in free space)
→Two coherent sources of different intensities send waves which interfere. The ratio of maximum intensity to the minimum intensity is $25$. The intensities of the sources are in the ratio
→The probability of electrons to be found in the conduction band of an intrinsic semiconductor at a finite temperature
If pulleys shown in the diagram are smooth and massless and $a_1$ and $a_2$ are acceleration of blocks of mass $4 \,kg$ and $8 \,kg$ respectively, then
→A motor cyclist going round in a circular track at constant speed has
A mass $m$ is placed at point $P$ lies on the axis of a ring of mass $M$ and radius $R$ at a distance $R$ from its centre. The gravitational force on mass $m$ is
→