Advertisements
Advertisements
प्रश्न
What are the good and bad conductors of heat ? Give two examples of each.
Advertisements
उत्तर
Good conductors. “The substances through which heat is easily conducted are called good conductors of heat.”
Example : Copper, iron.
Bad conductors. “The substances through which heat is not conducted easily are called bad conductors of heat or poor conductors of heat.”
Example : Wood, cloth.
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.
A mercury thermometer makes use of the property of the expansion of liquids on heating.
Fill in the blank
The temperature of boiling water is _______
Fill in the blank
Still air is an __________ of heat.
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
Why is an oven made of double walls with the space in between filled with cork ?
Why are chimneys provided over furnace in factories?
The bottom of a cooking utensil is painted black. Give the reason.
In ice cubes, the force of attraction between the water molecules is ______.
