On a temperature scale $X$,the boiling point of water is $65^{\circ} X$ and the freezing point is $-15^{\circ} X$. Assume that the $X$ scale is linear. The equivalent temperature corresponding to $-95^{\circ} X$ on the Fahrenheit scale would be $..........^{\circ} F$.

The temperature of the hot junction of a thermocouple is increased from $80\,\,^{\circ}\text{C}$ to $100\,\,^{\circ}\text{C}$. The percentage change in the thermoelectric power will be ............ $\%$.

$A$ new temperature scale uses $X$ as a unit of temperature,where the numerical value of the temperature $t_x$ in this scale is related to the absolute temperature $T$ by $t_x = 3T + 100$. If the specific heat of a material using this unit is $1400 \, J \, kg^{-1} X^{-1}$,its specific heat in the $SI$ system of units is:

Assertion $(A)$: Rapidly changing temperatures can be measured by thermocouples.
Reason $(R)$: The thermal capacity of the junction of a thermocouple is very small.

Is negative temperature possible on the Kelvin scale? Why?

On the Celsius scale,the absolute zero of temperature is at .......... $^\circ C$.