Final Answer:
The indicator head of a bimetallic stemmed thermometer ranges from 0 to 250 degrees Fahrenheit.
Step-by-step explanation:
A bimetallic stemmed thermometer consists of two different metals bonded together to form a coil. As the temperature changes, the metals expand or contract at different rates, causing the coil to unwind or coil tighter. The indicator head, which displays the temperature, typically ranges from 0 to 250 degrees Fahrenheit. This range allows the thermometer to measure a variety of temperatures commonly encountered in both household and industrial applications. The 0 to 250-degree Fahrenheit scale is suitable for tasks such as measuring cooking temperatures, monitoring HVAC systems, and ensuring safe operating conditions in various environments.