Given below is the diagram of evacuated glass tube of photo emissive tube. Identify the part which is indicated with a question mark.
A. Anode
B. Cathode
C. Grid
D. Dynode
Answer:B
Given below is the diagram of evacuated glass tube of photo emissive tube. Identify the part which is indicated with a question mark.
A. Anode B. Cathode C. Grid D. Dynode
Explanation: The cathode is formed of half cylinder. The anode is a metal ring near the center of the glass.