Question

Radiance is best defined as:

• A. Power per unit area
• B. Power per unit solid angle
• C. Power per unit area per unit solid angle
• D. Power per unit wavelength

Hint:

Remember: Radiance = Power per unit area per unit solid angle.

Answer 1

The Correct Option is C

Radiance quantifies the amount of energy radiating from a surface area within a specific solid angle. It is a fundamental quantity in remote sensing and radiometry.