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An Intiative by Sri Chaitanya
a
A- Anode, B-Cathode, C-Cathode rays
b
A-Anode, B- Perforated anode, C-ZnS screen
c
A-Cathode rays, B-Perforated Anode, C-ZnS screen
d
A-Cathode, B-Perforated Anode, C-Suction pump
answer is D.
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