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प्रश्न
What is meant by thermal expansion?
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उत्तर
The increase in size of a body on heating is called thermal expansion.
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संबंधित प्रश्न
State three factors on which depend the linear expansion of a metal rod on heating.
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?
A cubical metal solid block is heated. How will its volume change?
What is the velocity of thermal radiations?
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
Borosilicate glass do not expand much on being heated.
What difference do you think heating the solid will make in their molecules?
The expansion in volume is called linear expansion.
Analogy:
Ordinary glass:: Glass tumbler.
Pyrex glass:: ______.
What type of glassware is used in laboratories? Why?
