Question:
In a CRO, focusing of the electron beam is done by
In a CRO, focusing of the electron beam is done by
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In CRO, the focusing anode controls the sharpness of the electron beam spot.
Updated On: May 27, 2026
- Deflection plates
- Fluorescent screen
- Focusing anode
- Time base generator
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The Correct Option is C
Solution and Explanation
Concept:
In a CRO, the electron gun produces and focuses a beam of electrons on the fluorescent screen.
Step 1: The cathode emits electrons.
Step 2: These electrons are accelerated and focused by anode arrangement.
Step 3: The focusing anode concentrates the electron beam into a fine spot.
Step 4: Deflection plates only deflect the beam, while the fluorescent screen displays the waveform. Therefore, focusing is done by: \[ \boxed{\text{Focusing anode}} \]
Step 1: The cathode emits electrons.
Step 2: These electrons are accelerated and focused by anode arrangement.
Step 3: The focusing anode concentrates the electron beam into a fine spot.
Step 4: Deflection plates only deflect the beam, while the fluorescent screen displays the waveform. Therefore, focusing is done by: \[ \boxed{\text{Focusing anode}} \]
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