What are two fixed points on a temperature scale?

A mercury thermomeeter is transferred from melting ice to a hot liquid. The mercury rises to 9//10 of the distance between the two fixed points. Find the temperature of the liquid in Fahrenheit scale

It takes 2.0 seconds for a sound wave to travel between two fixed points when the day temperature is 10^(@) C . If the temperature rise to 30 ^(@)C the sound wave travels between the same fixed parts in

When the mercury thread rises to 3/4th of the distance between the two fixed points, what is the temperature indicated by the Fahrenheit scale?

Answer the following : (a) The triple-point of water is a standard fixed point in modern thermometry. Why ? What is wrong in taking the melting point of ice and the boiling point of water as standard fixed points (as was originally done in the Celsius scale) ? (b) There were two fixed points in the original Celsius scale as mentioned above which were assigned the number 0^(@)C" and "100^(@)C respectively. On the absolute scale, one of the fixed points is the triple-point of water, which on the Kelvin absolute scale is assigned the number 273.16 K. What is the other fixed point on this (Kelvin) scale ? (c ) The absolute temperature (Kelvin scale) T is related to the temperature t_(c) on the Celsius scale by t_(c)=T-273.15 Why do we have 273.15 in this relation, and not 273.16 ? (d) What is the temperature of the triple-point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale ?

What relation is used to convert temperature in one scale to other scale?

Scales Of Temperature