Question

Goldstein discovered

• A. Proton
• B. Neutron
• C. Electron
• D. Meson

Answer 1

The correct option is A

Proton

The explanation of the correct option-

E. Goldstein discovered a positively charged particle called proton through the experiment of canal ray discharge tube experiment.

The explanation of the incorrect options-

(b) Neutron - It was discovered by James Chadwick and found that neutron particles are neutral.

(c) Electron - It was discovered by J.J Thomson in a discharge tube experiment and found that electron particles are negative particles.

(d) Mesons - It was discovered by Hideki Yukawa and is made up of quarks and antiquarks.

Therefore, option (a) is the correct answer.