Question

In maximum and minimum thermometer, steel indices are used . Give scientific reason .​

Answer 1

Explanation:

Yes, this action tells you that a temperature change is occurring, but without a numerical scale to quantify it, you'd be unable to measure just what the temperature change is. In this way, the temperatures attached to a thermometer's glass play a key (albeit passive) role.

Answer 2

$\LARGE\sf {\underline{\underline\green{Required \:  Answer:-}}}$

Yes, this action tells you that a temperature change is occurring, but without a numerical scale to quantify it, you'd be unable to measure just what the temperature change is. In this way, the temperatures attached to a thermometer's glass play a key (albeit passive) role.