What Temperature Exists Inside a Solar Collector (Effective Collection Area

question 43

Multiple Choice

What temperature exists inside a solar collector (effective collection area of 15 m²) on a bright sunny day when the outside temperature is +20°C? Assume that the collector is thermally insulated, that the Sun radiates the collector with a power per unit area of 600 W/m², and that the collector acts as a perfect blackbody.

• A)73°C
• B)81°C
• C)93°C
• D)107°C
• E)154°C

---

Definitions:

Northern State

In the context of the American Civil War, a Northern state refers to any of the states that were part of the Union, opposing the seceding Confederate Southern states.

Common Schools

Early public schools in the United States aimed at providing basic education to children of all social classes.

Social Equality

A state in which all individuals within a society have the same status in terms of rights, freedoms, and opportunities.

Time Discipline

The social and economic practice of coordinating and regulating human activities and work efficiency through the strict measurement and management of time.