Verified Solution • 2025–26 Session moderate

QJEEM20Ph1cea: JEE Main 2020 Physics - Class 12 JEEM20Ph1cea Solution: Choose the correct option relating wave lengths of different…

Choose the correct option relating wave lengths of different parts of electromagnetic wave spectrum:

Multiple Choice Options

  • A λ\lambda radio waves > λ\lambda micro waves > λ\lambda visible > λ\lambda x-rays
  • B λ\lambda visible > λ\lambda x-rays > λ\lambda radio waves > λ\lambda micro waves
  • C λ\lambda visible < λ\lambda micro waves < λ\lambda radio waves < λ\lambda x-rays
  • D λ\lambda x-rays < λ\lambda micro waves < λ\lambda radio waves < λ\lambda visible

Step-by-Step Verified Solution

Decreasing order of wavelength,

Radio wave > Microwave > Infrared >
ROYGBIV(Visiable Resion) > Ultraviolet > X rays > γ\gamma rays

So the correct order -

λ\lambda radio waves > λ\lambda micro waves > λ\lambda visible > λ\lambda x-rays

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