Question

What is S.I. unit of temperature?
A.) Kelvin
B.) Degree Celsius
C.) Fahrenheit
D.) All of the above

Answer 1

Hint- First of all we will understand the meaning of unit, the international system of units (SI) then finally we will see the S.I. unit of temperature.

Complete step-by-step answer:

Unit- In our daily life we have to deal with the amount of things (like amount of rice, milk, wheat, current, intensity of light and all the things we see in our surroundings). And so we have to decide the proper way to measure accurately the amount.

For that purpose we have a fixed amount (called base unit) and then all the amounts are measured in respect to these units and the system which has formed these units is called the international system of units and is accepted all over the world .

There are 7 base units specified separately for measuring all the quantities

a.) kg -mass
b.) Ampere-current
c.) Meter-length
d.) Candela-intensity of light
e.) Mole-amount of substance
f.) Sec- unit of time
g.) Kelvin- temperature.

So, Kelvin is the S.I unit of temperature. The kelvin is the base unit of temperature in the International Unit of Systems. It is denoted by “K”.

Hence, the correct option is “A”

Note: The temperature is the measure of the hotness or coldness of a substance with respect to some standard value. When the temperature of two bodies is equal then they are said to be in thermal equilibrium. 0 degree Celsius is the temperature at which ice melts is taken as 273K and the temperature at which water converts into steam is termed as 373K.