Question

The nature of positive rays produced in a vacuum discharge tube depends upon:

• A. the nature of the gas filled
• B. nature of the material of cathode
• C. nature of the material of anode
• D. the potential applied across the electrodes

Answer 1

Answer: (A)

the nature of the gas filled

The nature of positive rays produced in a vacuum discharge tube depends upon the nature of the gas filled. The positive rays consists of positive ions obtained by removing one or more electrons from gas molecules.