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JEE Main2014PhysicsElectromagnetic WavesActual

If microwaves, X ‐ rays, infrared, gamma rays, ultraviolet, radio waves and visible parts of the electromagnetic spectrum are denoted respectively by M , X , I , G , U , R and V the following is the arrangement in ascending order of the wavelength

Options

  1. AI , M , R , U , V , X and G
  2. BR , M , I , V , U , X and G
  3. CM , R , V , X , U , G and I
  4. DG , X , U , V , I , M and R

Correct answer

D. G , X , U , V , I , M and R

Step-by-step solution

The electromagnetic (EM) spectrum is the range of all types of EM radiation. The &#947; &#8208; ray has a maximum frequency or minimum wavelength; since the wavelength is inversely proportional to frequency, while radio wave has a minimum frequency and maximum wavelength. The order of wavelength will be; Gamma rays G < X-rays X < Ultra violet U < Visible rays V < Infrared rays I < Microwaves M < Radio waves R .

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