Which one of the following could be the frequency of ultraviolet radiation?
Correct answer: D. 1.0 x 10^15Hz
- A. 1.0 x 10^6 Hz
- B. 1.0 x 10^9 Hz
- C. 1.0 x 10^12 Hz
- D. 1.0 x 10^15Hz
Explanation
The frequency of electromagnetic waves, including ultraviolet radiation, is often measured in hertz (Hz), where 1 Hz is equivalent to one cycle per second. The frequency of ultraviolet (UV) radiation falls in the higher range of the electromagnetic spectrum. 1.0 x 1015Hz is in the petahertz range, and it falls within the typical frequency range for ultraviolet radiation.
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About Electromagnetic Waves
Electromagnetic waves consist of mutually perpendicular, oscillating electric and magnetic fields that also remain perpendicular to the direction of propagation. They travel through vacuum at the speed of light and include radio waves, microwaves, infrared, visible, ultraviolet, X-rays and gamma rays. Unlike mechanical waves, they do not require a material medium.
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