Respuesta :
To test his hypothesis that "lights and colors do not blend in the air," for example, Ibn al-Haytham devised the world's first camera obscura, observed what happened when light rays intersected at its aperture, and recorded the results.
Answer:
al-Haytham devised the world's first camera obscura, observed what happened when light rays intersected at its aperture, and recorded the results.
Explanation: