Advertisements
Advertisements
प्रश्न
Two iron rods – one 10 m long and the other 5 m long, are heated to the same rise in temperature. Which will expand more?
उत्तर
Lt – L0 ∝ L0
∴ The rod having greater length will expand more when rods are heated to the same temperature.
∴ Rod with 10 m length will expand more.
APPEARS IN
संबंधित प्रश्न
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 metal plate is heated. State three factors on which the increase in its area will depend.
State one application of thermal expansion of liquids.
What is the velocity of thermal radiations?
Define the following term:
Coefficient of cubical expansion
The diagram shows a sketch graph showing a change in volume of a given mass of ice at -5°C to water at 15°C.
(i) Why does the temperature along BC remain constant?
(ii) When is the volume of water minimum?
(iii) At what temperature does water have maximum density? Explain.
Borosilicate glass do not expand much on being heated.
The expansion in volume is called linear expansion.
Analogy:
Ordinary glass:: Glass tumbler.
Pyrex glass:: ______.