An object appears white because it reflects all wavelengths of visible light . Option A is correct.
Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.
A white item reflects white light in all hues equally. We see the hue that an item does not absorb if it absorbs all except one. Red, orange, green, blue, indigo, and violet light are absorbed by the yellow strip in the diagram.
Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of vitamin C.
An object appears white because it reflects all wavelengths of visible light .
Hence, the correct answer for the blanks is reflects all wavelengths of visible light .
To learn more about the ultraviolet ray, refer to the link;
https://brainly.com/question/25780677
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