Question

Name the three main parts of a hot cathode ray tube. Mention one important function of ear main parts: 

State the principle on which the functioning of a nuclear reactor is based. 

Answer 1

Three main parts of hot cathode ray tube: 

(i) The electron gun, 

(ii) The deflecting system, 

(iii) The fluorescent screen. 

Functions: 

(i) Electron gun gives out fine beam of electrons. 

(ii) The deflecting system deflect electron beam in horizontal and vertical direction. 

(iii) The fluorescent screen gives bright spot on stirking of electron.