Advertisements
Advertisements
प्रश्न
A cubical metal solid block is heated. How will its volume change?
Advertisements
उत्तर
When a solid is heated, it expands in all directions. The volume of a cube also increases.
Let V0 be the volume of cube of side L0 at 0°C. i.e. V0 = L30 – V
When temperature increases to t°C each side increases to Vt
∴ Vt = L3t
Increase in volume = (Vt — V0) [L3t — L30]
Increase in temperature = (t — O)°C = t°C
APPEARS IN
संबंधित प्रश्न
What is matter? What is it composed of?
Two identical rods of copper are heated to different temperatures — one by 5°C and the other by 10°C. Which rod will expand more?
State one application of thermal expansion of liquids.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
What is the velocity of thermal radiations?
Distinguish between a clinical and a laboratory thermometer.
Give reasons for the following:
In cold countries, water pipes burst in winter.
What difference do you think heating the solid will make in their molecules?
Explain thermal expansion with suitable examples.
If you heat a circular disk with a hole, what change do you expect in the diameter of the hole? Remember that the effect of heating increases the separation between any pair of particles.
