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प्रश्न
A cubical metal solid block is heated. How will its volume change?
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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
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संबंधित प्रश्न
The increase in length of a metal rod depends on
State three factors on which depend the linear expansion of a metal rod on heating.
100 ml of each of the following liquid is heated from 10°C to 50°C. Which will expand more : (a) water (b) benzene (c) alcohol?
What is meant by thermal expansion?
Complete the following sentence:
When ice melts its volume ______ and density _______.
What difference do you think heating the solid will make in their molecules?
The expansion in volume is called linear expansion.
Analogy:
Expansion is length:: Linear expansion.
Expansion in volume:: ______.
Analogy:
Ordinary glass:: Glass tumbler.
Pyrex glass:: ______.
