C.R.O

[Eklav Rai]

What is the function of the vaccum in a C.R.O??

[Open Intelligence]

Electrons are very very minute particles with extremely little mass. If air was present in the tube (air consists of much bigger molecules as compared to electrons), collisions with the air molecules would have been very frequent. This may cause a deflection in the direction of the moving electrons and hence the electron will hit the fluorescent screen at some difference place it was meant to. It might also reduce the kinetic energy of the high-speed moving electrons, thus the image formed may be less bright.

[Eklav Rai]

Thanks you!!