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प्रश्न
Fill in the blank
A person is said to have fever if his body temperature is more than _________
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उत्तर
A person is said to have fever if his body temperature is more than 98.6
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संबंधित प्रश्न
When a substance having mass 3 kg receives 600 cal of heat, its temperature increases by 10°C. What is the specific heat of the substance?
Name the S.I. unit of heat and how is it related to the unit calorie?
Correct the following statement:
The boiling point of water is 273 K.
State three main characteristics of a thermometric substance.
Give a scientific reason for the following:
It is better to use thin blankets to keep the body warm rather than using a single blanket of thickness equal to their combined thickness.
Give a scientific reason for the following:
In winter the birds fluff up their feathers.
Explain the following:
Why is the cooling in a refrigerator kept near the top?
Assertion: When water is heated up to 100°C, there is no raise in temperature until all water gets converted into water vapour.
Reason: Boiling point of water is 10°C.
Match the following:
| Column-I | Column-II | |
| 1. | Temperature | Beam balance |
| 2. | Mass | Ruler |
| 3. | Length | Digital clock |
| 4. | Time | Thermometer |
