Which statement correctly describes ultraviolet light?

Which statement correctly describes ultraviolet light?

• A. It has frequencies higher than visible light and lower than X-rays
• B. It has frequencies lower than microwaves
• C. It is visible to the human eye
• D. It does not belong to the electromagnetic spectrum

Answer: (A)

Ultraviolet light sits between visible light and X-rays on the electromagnetic spectrum, having higher frequency than visible light but lower than X-rays. That placement by frequency is exactly what the statement conveys, making it the best description. It’s not visible to the human eye, and it is indeed part of the electromagnetic spectrum. It’s also not correct to say ultraviolet has frequencies lower than microwaves—microwaves have lower frequencies than visible light, while ultraviolet is higher.

Ultraviolet light sits between visible light and X-rays on the electromagnetic spectrum, having higher frequency than visible light but lower than X-rays. That placement by frequency is exactly what the statement conveys, making it the best description. It’s not visible to the human eye, and it is indeed part of the electromagnetic spectrum. It’s also not correct to say ultraviolet has frequencies lower than microwaves—microwaves have lower frequencies than visible light, while ultraviolet is higher.