Advertisements
Advertisements
प्रश्न
Write true or false for a given statement.
Telephone wires are kept tight between the two poles in summer.
पर्याय
True
False
Advertisements
उत्तर
False.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
A mercury thermometer makes use of the property of the expansion of liquids on heating.
Write true or false for a given statement.
Water is a bad conductor of heat.
Select the correct alternative
Which of the statement is correct
Describe one experiment to show that liquids expand on heating.
Name a solid which is a good conductor of heat.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
The applied heat energy can be realized as an increase in the average kinetic energy of the molecules.
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
When heat energy is added to a substance, the kinetic energy of its particles ______ and so the particles move at a higher speed.
Explain the following effects of heat.
Expansion
