Explanation

Ibn al-Haytham presented the theory of reflection and refraction of light

He is also known as Alhazen

His work, particularly his "Book of Optics", is titled Kitab al-Manazir, written during 1011–1021.

Born: c. 965 (c. 354 AH) Basra, Buyid Emirate

Died: c. 1040 (c. 430 AH)[1] (aged around 75) Cairo, Fatimid Caliphate