Which type of electromagnetic wave has a wavelength shorter than visible light but longer than X-rays, and is commonly used for sterilizing medical equipment?

Answer: C. Ultraviolet radiation

Answer Explanation: C. The electromagnetic spectrum in order of decreasing wavelength (increasing frequency) is: Radio, Microwave, Infrared, Visible, Ultraviolet, X-ray, Gamma. Ultraviolet radiation sits precisely between visible light and X-rays, and its high energy allows it to destroy bacteria and viruses, making it ideal for sterilization.

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