Question

what is the nature of the rays travelling from cathode to the anode in the discharge tube?

Answer 1

The anode (positive terminal) is in the base of the tube at bottom. Cathode rays travel from the cathode at the rear of the tube, striking the glass front, making it glow green by fluorescence. A metal cross in the tubecasts a shadow, demonstrating that the rays travel in straight lines.

Answer 2

Answer:

Cathode rays are produced by negative electrode towards anode.

They travel in straight lines and give sharp shadows. They can be deflected by only electric and magnetic fields.