The triple point of water is

The temperature at which the reading of a Fahrenheit thermometer will be double that of a centigrade thermometer is ........ $^\circ$.

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

What is the slope of the line $AB$ in the given graph?

$A$ faulty thermometer has its lower fixed point marked as $-10^\circ C$ and upper fixed point marked as $110^\circ C$. If the temperature of a body shown on this scale is $62^\circ$,the temperature shown on the Celsius scale is ........ $^\circ C$.

$A$ hypothetical thermometer reads $5^{\circ} C$ in melting ice and $99^{\circ} C$ at the steam point. What is the correct temperature in $^{\circ} F$ when this faulty thermometer reads $52^{\circ} C$?