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प्रश्न
Why is a ventilator provided in a room?
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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.
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संबंधित प्रश्न
Define one joule of heat.
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.
The hot metal ball is suspended from a string in a metal box as shown in the following figure
(i) What are the ways in which the ball loses heat
(ii) Which side of the box will be the hottest and which the least hot after some time? Explain.
Analogy
Heat : Joule :: Temperature : _____
The temperature and heat are ______ quantities.
One calorie is the amount of heat energy required to raise the temperature of _______ of water through ______.
Temperature measures the ______ kinetic energy of molecules.
Figure (a–d) shows the readings on four different thermometers. Indicate which of the reading shows the normal human body temperature?
What is the minimum possible temperature? Is there also a maximum possible temperature?
