What are cathode rays?
A
Stream of electrons
B
Beam of neutrons
C
Beam of protons
D
Stream of alpha particles
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
Cathode rays are streams of electrons emitted from the cathode (negative electrode) in a vacuum tube. Cathode rays can be deflected by magnetic and electric fields, demonstrating their charge and nature as electrons.
Source: WAEC / JAMB / NECO Classroom Archive (Record #72012)