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प्रश्न
Read the following paragraph and answer the questions based on it.
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If heat is exchanged between a hot and cold object, the temperature of the cold object goes on increasing due to gain of energy and the temperature of the hot object goes on decreasing due to loss of energy. The change in temperature continues till the temperatures of both the objects attain the same value. In this process, the cold object gains heat energy and the hot object loses heat energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistant box, then no energy can flow from inside the box or come into the box. |
- Heat is transferred from where to where?
- Which principle do we learn about from this process?
- How will you state the principle briefly?
उत्तर
- Heat is transferred from a hot body to a cold body i.e., from a higher temperature to a lower temperature.
- We learn the principle of heat exchange from this process.
- The heat energy lost by a hot object is always equal to the heat gained by a cold object provided that the system of both the object is isolated.
संबंधित प्रश्न
State differences between the laboratory thermometer and the clinical thermometer.
Temperature of boiling water cannot be measured by a ______ thermometer.
Heat is a kind of energy that flows from a hot body to a cold body.
A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because
While constructing a house in a coastal area, in which direction should the windows preferably face and why?
In reference to the figure, answer the following questions:
- What does the figure illustrate?
- Explain the temperature changes observed in two objects.
- Write the principle behind this concept.
State similarities between the laboratory thermometer and the clinical thermometer.
