Problem on measuring temperature

We can measure the temperature by using thermometers.

We often use a thermometer to check our body temperature when we are sick.

Not only our body, but we can also measure the temperature of any solid, liquid and gas.

The instrument used to measure the temperature is called a thermometer which is available in different measuring units.

The different measuring units of a thermometer are Celsius, Fahrenheit and Kelvin.

In the Celsius scale, is the freezing point and is the boiling point of water.

But the United States, Burma, and Liberia do not use the Celsius scale for measuring the temperature. Instead, they use the Fahrenheit scale.

is the freezing point and is the boiling point of water on the Fahrenheit scale.

Another measuring unit is Kelvin which is most widely used by physicists and scientists.

On this scale, the freezing point of water is and the boiling point of water is .

or was defined as the melting point of ice or was defined as the boiling point of water

In the above image, we can see the temperature differences between Celsius and Fahrenheit.

The three units are related to each other as above.

Let's solve a problem based on these concepts.

Consider a Celsius and a Fahrenheit thermometer dipped into boiling water.

Then, note down the temperature readings of both thermometers in Celsius and Fahrenheit.

The temperature reading of the Fahrenheit scale is F.

The centigrade thermometer is an old piece and the reading is not clear.

Now, we have to calculate that blurred reading by the centigrade thermometer.

Solution: We know the relation between the Celsius scale and Fahrenheit scale.

Putting the value of Fahrenheit scale temperature in the relation, we get as above.

Now, we have blurred reading of centigrade thermometer which is .

Revision

The amount of heat generated by a body is temperature and the instrument used to measure temperature is a thermometer.

There are three measuring units for temperature namely,

The relation between Celsius scale, Fahrenheit scale and Kelvin scale is as above.

The End