Question

Which of the following is/are Absolute Temperature Scale(s)?
A-Kelvin scale
B-Rankine scale
C-Celsius scale
D-Fahrenheit scale

Answer 1

The temperature scales are used to measure temperatures and they are widely used in doctor’s clinic, laboratories and industrial purposes.

Complete step by step answer:
Here the question is asking about absolute scales. An absolute scale is that scale in which the initial point starts from zero and it moves only in one direction. Thus in such scales, we cannot measure temperature lower than zero.
Now we should look at all the options given.
The lowest temperature that can be recorded in Celsius scale is -273.15 ${}^\circ C$
The lowest temperature that can be recorded In the Rankine scale is 0
The lowest temperature that can be recorded In the Kelvin scale is 0
The lowest temperature that can be recorded In Fahrenheit scale is -459.67
So out of all the given only two scales have their lowest point zero and they are Rankine & Kelvin.

So, the correct answer is “Option A and B”.

Note:
Temperature is a measure of the thermal energy of a body at thermal equilibrium. To measure temperature different scales could be used and the choice of scale depends upon the purpose of measurement. For example, the Fahrenheit scale is most widely used to measure the temperature of the human body. Similarly, the Celsius scale is used in laboratories while doing experiments and all. In science, the Celsius scale is most common; 0 is taken as the ice point of water and 100 the normal boiling point of water.