Details of a slice of prickly pear (cactus fruit ...

The image features two side-by-side photographs of a slice of prickly pear fruit, showcasing its appearance under different lighting conditions.

**Image Details**

* The top photograph displays the fruit under regular daylight, revealing a yellowish-green color with brown spots and an uneven texture.
* In contrast, the bottom photograph shows the same fruit illuminated by a 365 nm ultraviolet (UV-A) blacklight from a supermarket, which causes it to glow bright blue-purple.

**Lighting Conditions**

* The use of UV light highlights the presence of fluorescent compounds in the fruit's skin and flesh, resulting in a vibrant color that is not visible under normal lighting conditions.
* This phenomenon is likely due to the fruit's natural pigments, such as betalains or carotenoids, which are sensitive to ultraviolet radiation.

**Overall Appearance**

* The images demonstrate how different lighting conditions can affect our perception of an object's appearance and reveal hidden details that might not be apparent under normal circumstances.
* The use of UV light in the second photograph provides a unique perspective on the prickly pear fruit, highlighting its complex chemical composition and the diversity of its natural pigments. – AI vision