Which one of the following pairs of rays is *not* electromagnetic in nature ?
X-rays and cathode rays
Gamma rays and X-rays
Alpha rays and beta rays
Beta rays and gamma rays
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2010
– X-rays and gamma rays are high-energy forms of electromagnetic radiation.
– Alpha rays are streams of alpha particles, which are helium nuclei (2 protons, 2 neutrons). They are massive particles with a positive charge.
– Beta rays are streams of beta particles, which are high-energy electrons (β⁻ decay) or positrons (β⁺ decay). They are particles with a negative or positive charge.
– Cathode rays are streams of electrons, typically observed in vacuum tubes. They are also particles.