List the electromagnetic spectrum in order from lowest to highest frequency.

List the electromagnetic spectrum in order from lowest to highest frequency.

• A. Gamma, X-ray, Ultraviolet, Visible, Infrared, Microwave, Radio
• B. Radio, Infrared, Microwave, Visible, Ultraviolet, X-ray, Gamma
• C. Radio, Microwave, Infrared, Visible, Ultraviolet, X-ray, Gamma
• D. Radio, Microwave, Ultraviolet, Visible, Infrared, X-ray, Gamma

Answer: (C)

Frequency tells you how much energy each photon carries and where a wave sits on the spectrum. From lowest to highest frequency, the order is Radio, Microwave, Infrared, Visible, Ultraviolet, X-ray, Gamma. As frequency goes up, wavelength gets shorter and photon energy increases, so this sequence follows the increasing energy of the waves. Other options mix bands in a way that doesn’t keep the frequency rising, which is why they don’t fit.

Frequency tells you how much energy each photon carries and where a wave sits on the spectrum. From lowest to highest frequency, the order is Radio, Microwave, Infrared, Visible, Ultraviolet, X-ray, Gamma. As frequency goes up, wavelength gets shorter and photon energy increases, so this sequence follows the increasing energy of the waves. Other options mix bands in a way that doesn’t keep the frequency rising, which is why they don’t fit.