Arrange the following electromagnetic radiations in the decreasing order of their frequencies:

(A) Microwaves

(B) Gamma Radiations

(C) Radiowaves

(D) X-rays

(E) Infrared Radiations

Choose the correct answer from the options given below:

Correct option is C

Introduction:

• The Electromagnetic (EM) Spectrum is the range of all types of EM radiation, classified based on their wavelength or frequency.
• In physics and environmental science, understanding this hierarchy is vital because the energy (E) of a photon is directly proportional to its frequency (f) and inversely proportional to its wavelength ($\lambda$), as defined by the equation:
• ​$$E = h \cdot f = \frac{h \cdot c}{\lambda}$$​​
  
• Where h is Planck's constant and c is the speed of light.
• Consequently, radiations with the highest frequencies (like Gamma rays) possess the highest energy and shortest wavelengths, while those with the lowest frequencies (like Radio waves) have the lowest energy and longest wavelengths.

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