Which listed radiation has the minimum wavelength?

Question

G1 Physics · Accepted Answer

Step 1: Typical EM wavelengths decrease from infrared and ultraviolet to X-rays and gamma rays. Step 2: Among X-rays, ultraviolet, gamma and cosmic rays, the standard school classification treats cosmic rays as predominantly charged particles, not a fixed EM band. Step 3: The intended shortest-wavelength EM radiation here is γ-rays (option C), not the previous imported D. Final answer: (C) γ-rays.