Question

The speed of the cathode rays is

1) equal to light

2) lass than light

3) greater than light

4) may be less than, greater than or equal to

light​

Answer 1

Answer:

2. Less than light.

Explanation:

Cathode rays are nothing but negatively charged particles (electrons). Obviously they cannot travel faster than light. If we accelerate an electron into a cyclotron, due to its small mass, it will gain speed very rapidly resulting in the rapid increase of mass. This will disturb the resonating frequency of the machine. So they cannot travel faster than light.