Download App

Heat and Thermodynamics — Physics STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11PhysicsHeat and Thermodynamics2 Marks
Question
Define coefficient of linear expansion. Give its unit.
✓

Answer

The coefficient of linear expansion of the material of a solid rod is defined as the increase in length per unit original length per degree rise in its temperature.
The unit of $\alpha_{ L }$ is ${ }^{\circ} C ^{-1}$ (or $KT ^{-1}$ )

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 "[ 2 Marks Questions ]" from Heat and Thermodynamics→Heat and Thermodynamics — all question types→Physics STD 11 question papers→Tamilnadu Board STD 11 question papers→Tamilnadu Board question paper generator→

Similar questions

What happens to the P.E. of a bubble when it rises in water?
→
A body of mass $‘m’$ kg starts falling from a point $2R$ above the Earth’s surface. What is its $K.E.$ When it has fallen to a point $‘R’$ above the Earth’s surface.
→
Find the work done if a particle moves from position $r_1=$ to a position $(3 \hat{i}+2 \hat{j}-6 \hat{k})$ to a position $\vec{r}_2=(14 \hat{i}+13 \hat{j}-9 \hat{k})$ under the effect of force $\overrightarrow{ F }=(4 \hat{i}+\hat{j}+3 \hat{k}) N$
→
On what factors does radius of gyration of body depend?
→
State the principle of homogeneity. Test the dimensional homogeneity of equations (i) $s=u t+\frac{1}{2} a t^2$ (ii) $S _n=u+\frac{a}{2}(2 n-1)$
→
What is the angular velocity of the hour hand of a clock?
→
Define ‘Viscosity’?
→
K.E. of a body is increased by 300 %. Find the % increase in its momentum.
→
When an object will have procession? Give one example.
→
What is the angle between velocity vector and acceleration vector in uniform circular motion?
→