Properties of EM Waves: Practice Problem & Solution

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Properties of EM Waves. Understanding the underlying formula is key to arriving at the correct answer below:

In the electromagnetic spectrum, cosmic rays (though mostly particles, secondary cosmic rays have EM components with extremely high energy) or high-energy gamma rays have the shortest wavelengths. Among the choices, cosmic rays have the minimum wavelength.