A beam of slow electrons excites only the outer____________ layer.

Related MCQs

• A beam of very fast electrons penetrates through the red layer and excites the inner_____________ layer.
• A beam of electrons emitted by an electron gun is also called as ______________.
• In cathode ray tube, a beam of electrons is emitted ________________.
• The negatively charged electrons inside the CRT are then accelerated towards the__________.
• In beam penetration method, ________________ layers of phosphor are usually used.
• In beam penetration method, ______________and____________ layers of phosphor are usually used.
• In raster scan system the electron beam is swept across screen from _____________.
• Intensity of the electron beam is controlled by setting voltage levels on the________.
• The__________________ emits a small spot of light at each position contacted by the electron beam.
• The focusing system in a CRT is needed to force the electron beam to converge into a _____________ as it strikes the phosphor.