Physics PYQ 264 of 288 · Modern Physics

Which of the following is not an electromagnetic wave?

  1. AGamma ray
  2. BAlpha ray
  3. CX-ray
  4. DMore than one of the above
  5. ENone of the above

BPSC TRE-2 (Dec 2023)

Show answer and explanation

Correct answer: (b) Alpha ray

Explanation

Alpha rays are streams of alpha particles (helium nuclei: 2 protons and 2 neutrons), so they are not electromagnetic waves.

Gamma rays and X-rays are electromagnetic waves, like light but with far shorter wavelengths.

Practise this questionAll 288 Physics PYQs