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प्रश्न
What is a clinical thermometer? State its special feature. Draw a labelled neat diagram of a clinical thermometer showing the range of temperature marked on it.
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उत्तर
Doctors use a special thermometer called the clinical thermometer for measuring the temperature of the patient’s body. This thermometer has the markings from 35°C to 42°C. It has a slight bend or kink in the stem just above the bulb. This kink is called the constriction. This constriction prevents the mercury from falling back all by itself. The temperature of a healthy person is 37°C. This temperature is marked by a red arrow.
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संबंधित प्रश्न
Temperature is measured in degree ______.
Fill in the blank:
The normal temperature of human body is ............ °C or...........°F.
Fill in the blank.
The lower fixed point in a laboratory thermometer is the same as that of ................
State if the following statement is true or false. Correct the statement if it is false.
Water is the most commonly used thermometric substance.
Answer the following in a word or two or in a sentence.
At what temperature is the upper fixed point of a clinical thermometer kept?
Which of the following temperature conversions is incorrect
K ( Kelvin) = °C ( Celsius) + 273.15
Swathi kept a laboratory thermometer in hot water for some time and took it out to read the temperature. Ramani said it was a wrong way of measuring temperature. Do you agree with Ramani? Explain your answer.
The freezing point of alcohol is less than ______.
Shopkeepers selling ice blocks usually cover them with jute sacks. Explain why.
Go to a doctor or your nearest health centre. Observe the doctor taking the temperature of patients. Enquire:
- Why she dips the thermometer in a liquid before use.
- Why the thermometer is kept under the tongue.
- Whether the body temperature can be measured by keeping the thermometer at some place other than the mouth.
- Whether the temperature of different parts of the body is the same or different.
You can add more questions which come to your mind.
