Advertisements
Advertisements
प्रश्न
Why do we wear woolen clothes in winter?
टिप्पणी लिखिए
Advertisements
उत्तर
We wear woolen clothes in winter because woolen clothes have tiny pores and air is trapped in these pores and being a bad conductor, the trapped air obstructs the flow of body heat to the surroundings.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
State the temperature of ice point on the Celsius scale.
Is conduction possible in gases?
What is the unit of coefficient of linear expansion?
The temp. of two bodies differ by 1°C. What is the difference on the Fahrenheit scale of temperature?
Explain the following:
Why is the cooling in a refrigerator kept near the top?
Where am I?
The mean annual temperature around me is 10°C.
Analogy
Heat : Joule :: Temperature : _____
Match the following:
| Column-I | Column-II | |
| 1. | Temperature | Beam balance |
| 2. | Mass | Ruler |
| 3. | Length | Digital clock |
| 4. | Time | Thermometer |
______ is the degree of hotness or coldness of a body.
Which factor determines the direction of flow of heat from one body to another?
