Question

The positively charged radiations, i.e. canal rays led to the discovery of :

• A. nucleus
• B. electron
• C. proton
• D. all of the above

Answer 1

The correct option is C proton

E. Goldstein in 1886 discovered the presence of new radiations in a gas discharge and called them canal rays. These rays were positively charged radiations which ultimately led to the discovery of another sub-atomic particle.

Hence, option C is correct.