Advertisements
Advertisements
प्रश्न
Why are hollow bricks used in the construction of cold storage rooms?
एका वाक्यात उत्तर
Advertisements
उत्तर
Brick is a bad conductor of heat, hence bricks greatly reduce the conduction of heat from outside to the room. In order to ensure better insulation, bricks are made hollow so that air-filled between these gaps provides insulation to heat.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Is heat a form of energy?
Name the substance which contracts when heated from 00C to 40C.
Give a scientific reason for the following:
Old quits are less warm than the new ones.
Name the metal which is most conducting.
Distinguish between heat and temperature.
If you apply heat energy, the temperature of a system will _____.
Numerical Problems.
An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.
SI unit of temperature is ______.
Temperature measures the ______ kinetic energy of molecules.
Give reasons why –
gaps are left between railway tracks
