Advertisements
Advertisements
प्रश्न
What do you understand by thermal expansion of a substance ?
Advertisements
उत्तर
The expansion of a substance when, heated, is called thermal expansion.
Or
Thermal expansion is the tendency of matter to change .in shape, area and volume in response to a change in temperature.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.
Write true or false for a given statement.
Telephone wires are kept tight between the two poles in summer.
Write true or false for a given statement.
A mercury thermometer makes use of the property of the expansion of liquids on heating.
Fill in the blank
Gases expand _______ than the liquids.
Iron rims are heated before they are fixed on the wooden wheels. Explain the reason.
State one application of thermal expansion of liquids.
What are the good and bad conductors of heat ? Give two examples of each.
Why do we use cooking utensils made up of copper.
Why is a tea kettle provided with an ebonite handle?
______ is the only matter on the Earth that can be found naturally in all three states.
