Which statement is true about ultraviolet radiation relative to violet light?

Which statement is true about ultraviolet radiation relative to violet light?

• A. It lies beyond violet in the spectrum
• B. It lies within the red end of the spectrum
• C. It lies beyond infrared
• D. It lies outside the electromagnetic spectrum entirely

Answer: (A)

Ultraviolet radiation sits just beyond the violet end of the visible spectrum, because it has shorter wavelengths and higher energy than violet light. That placement means UV is still part of the electromagnetic spectrum, even though it isn’t visible to the eye. The red end covers longer wavelengths, and infrared extends even longer than red, so ultraviolet is not beyond infrared. It’s also not outside the electromagnetic spectrum. So the true idea is that ultraviolet lies beyond violet in the spectrum.

Ultraviolet radiation sits just beyond the violet end of the visible spectrum, because it has shorter wavelengths and higher energy than violet light. That placement means UV is still part of the electromagnetic spectrum, even though it isn’t visible to the eye. The red end covers longer wavelengths, and infrared extends even longer than red, so ultraviolet is not beyond infrared. It’s also not outside the electromagnetic spectrum. So the true idea is that ultraviolet lies beyond violet in the spectrum.