The order of the electromagnetic spectrum from shortest wavelength (highest frequency/energy) to longest wavelength (lowest frequency/energy) is: Gamma rays → X-rays → Ultraviolet (UV) → Visible light → Infrared (IR) → Microwaves → Radio waves. We need to arrange the given options in increasing wavelength.
Which one of the following sequences of electromagnetic spectrum is correct in terms of ascending wavelength order ?
Asked in UPSC Geoscientist 2024 · Topic: Wave Motion (Electromagnetic Waves: Properties, Electromagnetic Spectrum, Energy and Momentum)
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Answer: C. Gamma rays – X-rays – UV – Visible – In‐ frared – Microwaves – Radio and TV waves
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