Canal rays are

Options

A. a strem of positrons
B. a stream of protons
C. a stream of positively charged ions
D. electromagentic waves

Answer

C

Explanation

Anode rays are called canal rays because they pass through the canals, i.e., holes in the cathode. Anode rays are made up to positively changed ions because they are produced as a result of the knockout of electrons form the atoms of the gas by the bombardment of high-speed electrons of the cathode rays on them.