A platinum resistance thermometer has a resistance 11 ohms at the ice point, 15.247 ohms at the steam point and 28.887 ohms at the sulphur point (444.6^(@)C). Find the first and second temperature coefficient of platinum.

A platinum resistance thermometer has a resistance 11 ohms at the ice

1.	A platinum resistance thermometer has a resistance 11 ohms at the ice point, 15.247 ohms at the steam point and 28.887 ohms at the sulphur point (444.6^(@)C). Find the first and second temperature coefficient of platinum.
Answer» ANSWER :`apha=3.92xx10^(-3)K^(-1),beta=5.89xx10^(-7)K^(-2)`