Which type of radiation has a shorter wavelength than visible light?

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Multiple Choice

Which type of radiation has a shorter wavelength than visible light?

Explanation:
Shorter wavelength than visible light means higher frequency and higher energy per photon. The visible spectrum is roughly 380–750 nanometers. Ultraviolet lies beyond the violet end, with wavelengths shorter than about 400 nanometers, so it has a shorter wavelength than visible light. The other options sit at longer wavelengths: infrared is longer than visible, and microwaves and radio waves are even longer. Since energy per photon increases as wavelength gets shorter (E = hc/λ), ultraviolet photons carry more energy than visible photons, making this the correct choice.

Shorter wavelength than visible light means higher frequency and higher energy per photon. The visible spectrum is roughly 380–750 nanometers. Ultraviolet lies beyond the violet end, with wavelengths shorter than about 400 nanometers, so it has a shorter wavelength than visible light. The other options sit at longer wavelengths: infrared is longer than visible, and microwaves and radio waves are even longer. Since energy per photon increases as wavelength gets shorter (E = hc/λ), ultraviolet photons carry more energy than visible photons, making this the correct choice.

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