PhysicsClassical Physics

Compare Photons of Ultraviolet and Infrared Radiation

Use frequency, wavelength, and photon-energy relationships to identify the two correct comparisons between ultraviolet and infrared radiation.

Question

Use the frequency ranges in the table to answer the question.

Frequency ranges for ultraviolet and infrared radiation

Ultraviolet3.0 × 10^16 Hz to 7.5 × 10^14 Hz
Infrared4.3 × 10^14 Hz to 3.0 × 10^11 Hz

Based on the information in the preceding table, which TWO of the following comparisons about ultraviolet and infrared light are true?

A. Ultraviolet light has shorter wavelengths than infrared light does.

B. Ultraviolet light has longer wavelengths than infrared light does.

C. Photons of ultraviolet light have less energy than photons of infrared light do.

D. Photons of ultraviolet light have more energy than photons of infrared light do.

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Evidence boundary

This answer compares the frequency ranges shown in the question, the corresponding vacuum wavelengths, and energy per photon. It does not compare beam intensity, total beam energy, photon count, biological effects, or any particular source of ultraviolet or infrared radiation.