Advertisements
Advertisements
प्रश्न
Why is a ventilator provided in a room?
Advertisements
उत्तर
A ventilator is provided in a room because it helps in removing the hot air from the room and allows the fresh and cold air to come in.
APPEARS IN
संबंधित प्रश्न
Name two substances which contract on heating.
Define coefficient of linear expansion. Write its SI unit.
Is conduction possible in vacuum?
Name three devices which are used to detect heat radiations.
What do you mean by linear expansion?
Convert the following temperature into Fahrenheit scale:
850C.
Draw a neat and labeled diagram of a Six's maximum and minimum thermometer. Explain briefly, the working of this thermometer. Give a use of this thermometer.
Explain the following:
Conduction is not possible in vacuum.
Heat energy is always transferred from ______ to ______ temperatures.
