$A$ thermocouple is a device for the measurement of

What is absolute zero temperature?

Is negative temperature possible on the Kelvin scale? Why?

What is the triple point?

The correct value of $0^{\circ}C$ on the Kelvin scale is ........ $K$.

The resistance of the platinum wire of a platinum resistance thermometer at the ice point is $5\; \Omega$ and at steam point is $5.39\; \Omega$. When the thermometer is inserted in a hot bath,the resistance of the platinum wire is $5.795\; \Omega$. Calculate the temperature of the bath in $^oC$. (in $^{\circ}C$)