Yellow onion when exposed to regular daylight as well as ...

The image features two photographs of an onion, showcasing its appearance under different lighting conditions.

**Photograph 1: Yellow Onion in Regular Daylight**

* The top photograph depicts a yellow onion situated on a dark surface.
* Illumination is provided by regular daylight, resulting in the onion appearing as a typical yellow color with no discernible patterns or markings.

**Photograph 2: Yellow Onion Under Ultraviolet (UV-A) Blacklight**

* The bottom photograph shows the same yellow onion exposed to UV-A blacklight from HEB supermarket.
* Illumination is provided by the blacklight, which has caused the onion's layers to fluoresce and display a vibrant blue color.

**Comparison of Photographs**

* The two photographs highlight the difference in appearance between the yellow onion under regular daylight and under UV-A blacklight illumination.
* The use of UV-A blacklight has revealed intricate patterns within the onion, demonstrating its ability to induce fluorescence. – AI vision