Advertisements
Advertisements
प्रश्न
Why are hollow bricks used in the construction of cold storage rooms?
एक पंक्ति में 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
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Who is telling the truth?
Heat flows from an object at higher temperature to an object at lower temperature.
Define heat energy on the basis of kinetic theory of matter.
Write the SI unit of coefficient of cubical expansion.
Define coefficient of volume expansion.
Explain the three modes of transfer of heat.
What is a clinical thermometer?
How is the size of a degree defined on the Celsius scale?
Write the relationship between the Celsius and Fahrenheit scales of temperature.
Out of metals, liquids, and gases:
Which one is the best conductor of heat?
Assertion (A): 0 °C = 273.16 K. For our convenience we take it as 273 K after rounding off the decimal.
Reason (R): To convert a temperature on the Celsius scale we have to add 273 to the given temperature.
